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Finding the Fourth Proportional to 615,498.49, 924,871.40 and 331,399.09

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Solution

The fourth proportional to 615,498.49, 924,871.40 and 331,399.09 is: 497,972.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,498.49 : 924,871.40 = 331,399.09 : x
  2. Step 2: Convert to fraction form
    615,498.49/924,871.40 = 331,399.09/x
  3. Step 3: Cross multiply
    615,498.49x = 924,871.40 × 331,399.09
  4. Step 4: Simplify right side
    615,498.49x = 306,501,538,670.03
  5. Step 5: Solve for x
    x = 306,501,538,670.03/615,498.49
  6. Step 6: Final answer
    x = 497,972.85

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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.