Home / 391,747.34-587,787.11-214,046.76

Finding the Fourth Proportional to 391,747.34, 587,787.11 and 214,046.76

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Solution

The fourth proportional to 391,747.34, 587,787.11 and 214,046.76 is: 321,160.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,747.34 : 587,787.11 = 214,046.76 : x
  2. Step 2: Convert to fraction form
    391,747.34/587,787.11 = 214,046.76/x
  3. Step 3: Cross multiply
    391,747.34x = 587,787.11 × 214,046.76
  4. Step 4: Simplify right side
    391,747.34x = 125,813,927,000.38
  5. Step 5: Solve for x
    x = 125,813,927,000.38/391,747.34
  6. Step 6: Final answer
    x = 321,160.89

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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.