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Finding the Fourth Proportional to 396,395.52, 594,684 and 171,793.56

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Solution

The fourth proportional to 396,395.52, 594,684 and 171,793.56 is: 257,729.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,395.52 : 594,684 = 171,793.56 : x
  2. Step 2: Convert to fraction form
    396,395.52/594,684 = 171,793.56/x
  3. Step 3: Cross multiply
    396,395.52x = 594,684 × 171,793.56
  4. Step 4: Simplify right side
    396,395.52x = 102,162,881,435.04
  5. Step 5: Solve for x
    x = 102,162,881,435.04/396,395.52
  6. Step 6: Final answer
    x = 257,729.66

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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.