Home / 396,934.61-547,767.09-215,645.27

Finding the Fourth Proportional to 396,934.61, 547,767.09 and 215,645.27

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Solution

The fourth proportional to 396,934.61, 547,767.09 and 215,645.27 is: 297,589.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,934.61 : 547,767.09 = 215,645.27 : x
  2. Step 2: Convert to fraction form
    396,934.61/547,767.09 = 215,645.27/x
  3. Step 3: Cross multiply
    396,934.61x = 547,767.09 × 215,645.27
  4. Step 4: Simplify right side
    396,934.61x = 118,123,382,020.16
  5. Step 5: Solve for x
    x = 118,123,382,020.16/396,934.61
  6. Step 6: Final answer
    x = 297,589.02

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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.