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Finding the Fourth Proportional to 624,379.75, 861,644.05 and 337,899.89

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Solution

The fourth proportional to 624,379.75, 861,644.05 and 337,899.89 is: 466,301.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,379.75 : 861,644.05 = 337,899.89 : x
  2. Step 2: Convert to fraction form
    624,379.75/861,644.05 = 337,899.89/x
  3. Step 3: Cross multiply
    624,379.75x = 861,644.05 × 337,899.89
  4. Step 4: Simplify right side
    624,379.75x = 291,149,431,023.52
  5. Step 5: Solve for x
    x = 291,149,431,023.52/624,379.75
  6. Step 6: Final answer
    x = 466,301.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.