Home / 396,209.85-593,789.05-215,832.54

Finding the Fourth Proportional to 396,209.85, 593,789.05 and 215,832.54

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Solution

The fourth proportional to 396,209.85, 593,789.05 and 215,832.54 is: 323,462.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,209.85 : 593,789.05 = 215,832.54 : x
  2. Step 2: Convert to fraction form
    396,209.85/593,789.05 = 215,832.54/x
  3. Step 3: Cross multiply
    396,209.85x = 593,789.05 × 215,832.54
  4. Step 4: Simplify right side
    396,209.85x = 128,158,998,885.69
  5. Step 5: Solve for x
    x = 128,158,998,885.69/396,209.85
  6. Step 6: Final answer
    x = 323,462.42

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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.