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Finding the Fourth Proportional to 616,354.64, 850,553.12 and 344,424.78

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Solution

The fourth proportional to 616,354.64, 850,553.12 and 344,424.78 is: 475,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,354.64 : 850,553.12 = 344,424.78 : x
  2. Step 2: Convert to fraction form
    616,354.64/850,553.12 = 344,424.78/x
  3. Step 3: Cross multiply
    616,354.64x = 850,553.12 × 344,424.78
  4. Step 4: Simplify right side
    616,354.64x = 292,951,571,234.31
  5. Step 5: Solve for x
    x = 292,951,571,234.31/616,354.64
  6. Step 6: Final answer
    x = 475,297.10

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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.