Home / 378,057.20-566,429.70-319,008.20

Finding the Fourth Proportional to 378,057.20, 566,429.70 and 319,008.20

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Solution

The fourth proportional to 378,057.20, 566,429.70 and 319,008.20 is: 477,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,057.20 : 566,429.70 = 319,008.20 : x
  2. Step 2: Convert to fraction form
    378,057.20/566,429.70 = 319,008.20/x
  3. Step 3: Cross multiply
    378,057.20x = 566,429.70 × 319,008.20
  4. Step 4: Simplify right side
    378,057.20x = 180,695,719,023.54
  5. Step 5: Solve for x
    x = 180,695,719,023.54/378,057.20
  6. Step 6: Final answer
    x = 477,958.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.