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Finding the Fourth Proportional to 615,930.89, 925,536.59 and 331,839.59

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Solution

The fourth proportional to 615,930.89, 925,536.59 and 331,839.59 is: 498,643.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,930.89 : 925,536.59 = 331,839.59 : x
  2. Step 2: Convert to fraction form
    615,930.89/925,536.59 = 331,839.59/x
  3. Step 3: Cross multiply
    615,930.89x = 925,536.59 × 331,839.59
  4. Step 4: Simplify right side
    615,930.89x = 307,129,680,896.40
  5. Step 5: Solve for x
    x = 307,129,680,896.40/615,930.89
  6. Step 6: Final answer
    x = 498,643.09

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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.