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Finding the Fourth Proportional to 541,397.20, 812,095.80 and 331,445.20

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Solution

The fourth proportional to 541,397.20, 812,095.80 and 331,445.20 is: 497,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,397.20 : 812,095.80 = 331,445.20 : x
  2. Step 2: Convert to fraction form
    541,397.20/812,095.80 = 331,445.20/x
  3. Step 3: Cross multiply
    541,397.20x = 812,095.80 × 331,445.20
  4. Step 4: Simplify right side
    541,397.20x = 269,165,254,850.16
  5. Step 5: Solve for x
    x = 269,165,254,850.16/541,397.20
  6. Step 6: Final answer
    x = 497,167.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.