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Finding the Fourth Proportional to 545,793.30, 818,689.95 and 542,294.10

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Solution

The fourth proportional to 545,793.30, 818,689.95 and 542,294.10 is: 813,441.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,793.30 : 818,689.95 = 542,294.10 : x
  2. Step 2: Convert to fraction form
    545,793.30/818,689.95 = 542,294.10/x
  3. Step 3: Cross multiply
    545,793.30x = 818,689.95 × 542,294.10
  4. Step 4: Simplify right side
    545,793.30x = 443,970,729,614.30
  5. Step 5: Solve for x
    x = 443,970,729,614.30/545,793.30
  6. Step 6: Final answer
    x = 813,441.15

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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.