Home / 396,748.72-547,502.52-215,452.36

Finding the Fourth Proportional to 396,748.72, 547,502.52 and 215,452.36

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Solution

The fourth proportional to 396,748.72, 547,502.52 and 215,452.36 is: 297,318.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,748.72 : 547,502.52 = 215,452.36 : x
  2. Step 2: Convert to fraction form
    396,748.72/547,502.52 = 215,452.36/x
  3. Step 3: Cross multiply
    396,748.72x = 547,502.52 × 215,452.36
  4. Step 4: Simplify right side
    396,748.72x = 117,960,710,039.95
  5. Step 5: Solve for x
    x = 117,960,710,039.95/396,748.72
  6. Step 6: Final answer
    x = 297,318.44

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1.5x scale

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.