Home / 396,800.42-547,591.13-215,512.49

Finding the Fourth Proportional to 396,800.42, 547,591.13 and 215,512.49

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Solution

The fourth proportional to 396,800.42, 547,591.13 and 215,512.49 is: 297,410.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,800.42 : 547,591.13 = 215,512.49 : x
  2. Step 2: Convert to fraction form
    396,800.42/547,591.13 = 215,512.49/x
  3. Step 3: Cross multiply
    396,800.42x = 547,591.13 × 215,512.49
  4. Step 4: Simplify right side
    396,800.42x = 118,012,727,928.21
  5. Step 5: Solve for x
    x = 118,012,727,928.21/396,800.42
  6. Step 6: Final answer
    x = 297,410.79

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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.