Home / 396,914.43-547,440.14-274,610.31

Finding the Fourth Proportional to 396,914.43, 547,440.14 and 274,610.31

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Solution

The fourth proportional to 396,914.43, 547,440.14 and 274,610.31 is: 378,753.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,914.43 : 547,440.14 = 274,610.31 : x
  2. Step 2: Convert to fraction form
    396,914.43/547,440.14 = 274,610.31/x
  3. Step 3: Cross multiply
    396,914.43x = 547,440.14 × 274,610.31
  4. Step 4: Simplify right side
    396,914.43x = 150,332,705,178.79
  5. Step 5: Solve for x
    x = 150,332,705,178.79/396,914.43
  6. Step 6: Final answer
    x = 378,753.44

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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.