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Finding the Fourth Proportional to 624,436.47, 861,720.81 and 337,956.75

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Solution

The fourth proportional to 624,436.47, 861,720.81 and 337,956.75 is: 466,379.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,436.47 : 861,720.81 = 337,956.75 : x
  2. Step 2: Convert to fraction form
    624,436.47/861,720.81 = 337,956.75/x
  3. Step 3: Cross multiply
    624,436.47x = 861,720.81 × 337,956.75
  4. Step 4: Simplify right side
    624,436.47x = 291,224,364,354.97
  5. Step 5: Solve for x
    x = 291,224,364,354.97/624,436.47
  6. Step 6: Final answer
    x = 466,379.49

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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.