Finding the Fourth Proportional to 716,517.16, 1,074,607.74 and 316,940.20
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Solution
The fourth proportional to 716,517.16, 1,074,607.74 and 316,940.20 is: 475,335.99
Step by Step Solution
- Step 1: Write the proportion equation
716,517.16 : 1,074,607.74 = 316,940.20 : x - Step 2: Convert to fraction form
716,517.16/1,074,607.74 = 316,940.20/x - Step 3: Cross multiply
716,517.16x = 1,074,607.74 × 316,940.20 - Step 4: Simplify right side
716,517.16x = 340,586,392,037.15 - Step 5: Solve for x
x = 340,586,392,037.15/716,517.16 - Step 6: Final answer
x = 475,335.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.