2.4 cups of orange juice would be needed for 1 cup of pineapple juice.
Using the parameters given for our Calculation;
- ⅘ cup of oranges = ⅓ cup of pineapples
We can write a proportional expression as :
⅘ = ⅓
x = 1
cross multiply
x/3 = 4/5
5x = 3 × 4
5x = 12
x = 2.4
Hence, 2.4 cups of orange juice would be need