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Finding the Fourth Proportional to 539,385.40, 807,234.90 and 473,030.20

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Solution

The fourth proportional to 539,385.40, 807,234.90 and 473,030.20 is: 707,928.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,385.40 : 807,234.90 = 473,030.20 : x
  2. Step 2: Convert to fraction form
    539,385.40/807,234.90 = 473,030.20/x
  3. Step 3: Cross multiply
    539,385.40x = 807,234.90 × 473,030.20
  4. Step 4: Simplify right side
    539,385.40x = 381,846,486,193.98
  5. Step 5: Solve for x
    x = 381,846,486,193.98/539,385.40
  6. Step 6: Final answer
    x = 707,928.85

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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.