Home / 396,761.45-547,530.65-215,473.43

Finding the Fourth Proportional to 396,761.45, 547,530.65 and 215,473.43

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Solution

The fourth proportional to 396,761.45, 547,530.65 and 215,473.43 is: 297,353.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,761.45 : 547,530.65 = 215,473.43 : x
  2. Step 2: Convert to fraction form
    396,761.45/547,530.65 = 215,473.43/x
  3. Step 3: Cross multiply
    396,761.45x = 547,530.65 × 215,473.43
  4. Step 4: Simplify right side
    396,761.45x = 117,978,307,185.63
  5. Step 5: Solve for x
    x = 117,978,307,185.63/396,761.45
  6. Step 6: Final answer
    x = 297,353.26

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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.