Home / 396,723.38-547,482.23-215,436.87

Finding the Fourth Proportional to 396,723.38, 547,482.23 and 215,436.87

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Solution

The fourth proportional to 396,723.38, 547,482.23 and 215,436.87 is: 297,305.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,723.38 : 547,482.23 = 215,436.87 : x
  2. Step 2: Convert to fraction form
    396,723.38/547,482.23 = 215,436.87/x
  3. Step 3: Cross multiply
    396,723.38x = 547,482.23 × 215,436.87
  4. Step 4: Simplify right side
    396,723.38x = 117,947,856,934.64
  5. Step 5: Solve for x
    x = 117,947,856,934.64/396,723.38
  6. Step 6: Final answer
    x = 297,305.04

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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.