+128407 Here's a couple of examples......
Suppose we have the numbers 1,2,5 and 10....a proportional relationship using these numbers is....
1 / 2 = 5 /10 .... we have something called "cross- product equality" in a proportion.....note that, taking the "cross-products" ..... 1 x 10 = 2 x 5 .......this relationship always holds in a proportion !!!
We can also have a proportion just using three numbers, say, 1, 2 and 4
1/2 = 2 /4 and again......the cross-products are equal
Lastly, one of the most famous proportions in math deals with something called the Golden Ratio...it deals wth the method of dividing a line such that.....
[length of the longer segment] / [length of the shorter segment] = [total length of the line] / [length of the longer segment] .......when this is done correctly, the fractions on both sides equal a number known as Phi....and the reciprocals of the fractions equal a number known as "little Phi" or just "phi" !!!
Hope that helps.....
+128407 Here's a couple of examples......
Suppose we have the numbers 1,2,5 and 10....a proportional relationship using these numbers is....
1 / 2 = 5 /10 .... we have something called "cross- product equality" in a proportion.....note that, taking the "cross-products" ..... 1 x 10 = 2 x 5 .......this relationship always holds in a proportion !!!
We can also have a proportion just using three numbers, say, 1, 2 and 4
1/2 = 2 /4 and again......the cross-products are equal
Lastly, one of the most famous proportions in math deals with something called the Golden Ratio...it deals wth the method of dividing a line such that.....
[length of the longer segment] / [length of the shorter segment] = [total length of the line] / [length of the longer segment] .......when this is done correctly, the fractions on both sides equal a number known as Phi....and the reciprocals of the fractions equal a number known as "little Phi" or just "phi" !!!
Hope that helps.....
