Home / 422,766.18-583,446.78-231,791.90

Finding the Fourth Proportional to 422,766.18, 583,446.78 and 231,791.90

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Solution

The fourth proportional to 422,766.18, 583,446.78 and 231,791.90 is: 319,888.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,766.18 : 583,446.78 = 231,791.90 : x
  2. Step 2: Convert to fraction form
    422,766.18/583,446.78 = 231,791.90/x
  3. Step 3: Cross multiply
    422,766.18x = 583,446.78 × 231,791.90
  4. Step 4: Simplify right side
    422,766.18x = 135,238,234,767.85
  5. Step 5: Solve for x
    x = 135,238,234,767.85/422,766.18
  6. Step 6: Final answer
    x = 319,888.96

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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.