Finding the Fourth Proportional to 572,781.48, 790,350.68 and 331,017.42
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Solution
The fourth proportional to 572,781.48, 790,350.68 and 331,017.42 is: 456,753.32
Step by Step Solution
- Step 1: Write the proportion equation
572,781.48 : 790,350.68 = 331,017.42 : x - Step 2: Convert to fraction form
572,781.48/790,350.68 = 331,017.42/x - Step 3: Cross multiply
572,781.48x = 790,350.68 × 331,017.42 - Step 4: Simplify right side
572,781.48x = 261,619,842,988.85 - Step 5: Solve for x
x = 261,619,842,988.85/572,781.48 - Step 6: Final answer
x = 456,753.32
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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.