Home / 396,860.28-547,677.08-215,572.16

Finding the Fourth Proportional to 396,860.28, 547,677.08 and 215,572.16

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Solution

The fourth proportional to 396,860.28, 547,677.08 and 215,572.16 is: 297,494.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,860.28 : 547,677.08 = 215,572.16 : x
  2. Step 2: Convert to fraction form
    396,860.28/547,677.08 = 215,572.16/x
  3. Step 3: Cross multiply
    396,860.28x = 547,677.08 × 215,572.16
  4. Step 4: Simplify right side
    396,860.28x = 118,063,931,118.09
  5. Step 5: Solve for x
    x = 118,063,931,118.09/396,860.28
  6. Step 6: Final answer
    x = 297,494.95

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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.