Home / 396,834.42-547,635.63-215,549.89

Finding the Fourth Proportional to 396,834.42, 547,635.63 and 215,549.89

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Solution

The fourth proportional to 396,834.42, 547,635.63 and 215,549.89 is: 297,461.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,834.42 : 547,635.63 = 215,549.89 : x
  2. Step 2: Convert to fraction form
    396,834.42/547,635.63 = 215,549.89/x
  3. Step 3: Cross multiply
    396,834.42x = 547,635.63 × 215,549.89
  4. Step 4: Simplify right side
    396,834.42x = 118,042,799,245.80
  5. Step 5: Solve for x
    x = 118,042,799,245.80/396,834.42
  6. Step 6: Final answer
    x = 297,461.09

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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.