Home / 396,827.70-547,626.25-215,543.17

Finding the Fourth Proportional to 396,827.70, 547,626.25 and 215,543.17

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Solution

The fourth proportional to 396,827.70, 547,626.25 and 215,543.17 is: 297,451.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,827.70 : 547,626.25 = 215,543.17 : x
  2. Step 2: Convert to fraction form
    396,827.70/547,626.25 = 215,543.17/x
  3. Step 3: Cross multiply
    396,827.70x = 547,626.25 × 215,543.17
  4. Step 4: Simplify right side
    396,827.70x = 118,037,097,900.21
  5. Step 5: Solve for x
    x = 118,037,097,900.21/396,827.70
  6. Step 6: Final answer
    x = 297,451.76

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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.