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Finding the Fourth Proportional to 428,377.52, 591,164.28 and 237,394

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Solution

The fourth proportional to 428,377.52, 591,164.28 and 237,394 is: 327,605.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,377.52 : 591,164.28 = 237,394 : x
  2. Step 2: Convert to fraction form
    428,377.52/591,164.28 = 237,394/x
  3. Step 3: Cross multiply
    428,377.52x = 591,164.28 × 237,394
  4. Step 4: Simplify right side
    428,377.52x = 140,338,853,086.32
  5. Step 5: Solve for x
    x = 140,338,853,086.32/428,377.52
  6. Step 6: Final answer
    x = 327,605.55

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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.