Home / 396,793.22-547,578.60-215,508.69

Finding the Fourth Proportional to 396,793.22, 547,578.60 and 215,508.69

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Solution

The fourth proportional to 396,793.22, 547,578.60 and 215,508.69 is: 297,404.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,793.22 : 547,578.60 = 215,508.69 : x
  2. Step 2: Convert to fraction form
    396,793.22/547,578.60 = 215,508.69/x
  3. Step 3: Cross multiply
    396,793.22x = 547,578.60 × 215,508.69
  4. Step 4: Simplify right side
    396,793.22x = 118,007,945,949.88
  5. Step 5: Solve for x
    x = 118,007,945,949.88/396,793.22
  6. Step 6: Final answer
    x = 297,404.14

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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.