Question

Do the given ratios form a proportion:

$80:490$ and $112:686$.

Answer 1

$80:490$ can be written as $\frac{80}{490}$

On simplifying $\frac{80}{490}$, we get $\frac{8}{49}$.

Similarly, $112:686$ can be written as $\frac{112}{686}$

On simplifying $\frac{112}{686}$, we get $\frac{8}{49}$.

Since, on solving $80:490$ and $112:686$, we get the same value $i.e$ $\frac{8}{49}$.

Therefore, $80:490$ and $112:686$ are in proportion.