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Finding the Fourth Proportional to 539,041.40, 807,006.90 and 523,489.40

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Solution

The fourth proportional to 539,041.40, 807,006.90 and 523,489.40 is: 783,723.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,041.40 : 807,006.90 = 523,489.40 : x
  2. Step 2: Convert to fraction form
    539,041.40/807,006.90 = 523,489.40/x
  3. Step 3: Cross multiply
    539,041.40x = 807,006.90 × 523,489.40
  4. Step 4: Simplify right side
    539,041.40x = 422,459,557,876.86
  5. Step 5: Solve for x
    x = 422,459,557,876.86/539,041.40
  6. Step 6: Final answer
    x = 783,723.77

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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.