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Finding the Fourth Proportional to 539,393.40, 807,246.90 and 473,038.20

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Solution

The fourth proportional to 539,393.40, 807,246.90 and 473,038.20 is: 707,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,393.40 : 807,246.90 = 473,038.20 : x
  2. Step 2: Convert to fraction form
    539,393.40/807,246.90 = 473,038.20/x
  3. Step 3: Cross multiply
    539,393.40x = 807,246.90 × 473,038.20
  4. Step 4: Simplify right side
    539,393.40x = 381,858,620,531.58
  5. Step 5: Solve for x
    x = 381,858,620,531.58/539,393.40
  6. Step 6: Final answer
    x = 707,940.85

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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.