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Finding the Fourth Proportional to 609,338.82, 840,877.28 and 337,400.87

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Solution

The fourth proportional to 609,338.82, 840,877.28 and 337,400.87 is: 465,607.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,338.82 : 840,877.28 = 337,400.87 : x
  2. Step 2: Convert to fraction form
    609,338.82/840,877.28 = 337,400.87/x
  3. Step 3: Cross multiply
    609,338.82x = 840,877.28 × 337,400.87
  4. Step 4: Simplify right side
    609,338.82x = 283,712,719,943.84
  5. Step 5: Solve for x
    x = 283,712,719,943.84/609,338.82
  6. Step 6: Final answer
    x = 465,607.49

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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.