Finding the Fourth Proportional to 478,452.15, 659,972.00 and 284,729.99
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Solution
The fourth proportional to 478,452.15, 659,972.00 and 284,729.99 is: 392,753.63
Step by Step Solution
- Step 1: Write the proportion equation
478,452.15 : 659,972.00 = 284,729.99 : x - Step 2: Convert to fraction form
478,452.15/659,972.00 = 284,729.99/x - Step 3: Cross multiply
478,452.15x = 659,972.00 × 284,729.99 - Step 4: Simplify right side
478,452.15x = 187,913,818,372.25 - Step 5: Solve for x
x = 187,913,818,372.25/478,452.15 - Step 6: Final answer
x = 392,753.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.