Home / 396,739.20-547,502.40-226,980.48

Finding the Fourth Proportional to 396,739.20, 547,502.40 and 226,980.48

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Solution

The fourth proportional to 396,739.20, 547,502.40 and 226,980.48 is: 313,234.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,739.20 : 547,502.40 = 226,980.48 : x
  2. Step 2: Convert to fraction form
    396,739.20/547,502.40 = 226,980.48/x
  3. Step 3: Cross multiply
    396,739.20x = 547,502.40 × 226,980.48
  4. Step 4: Simplify right side
    396,739.20x = 124,272,357,553.15
  5. Step 5: Solve for x
    x = 124,272,357,553.15/396,739.20
  6. Step 6: Final answer
    x = 313,234.38

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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.