Home / 378,513.61-567,865.89-125,795.43

Finding the Fourth Proportional to 378,513.61, 567,865.89 and 125,795.43

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Solution

The fourth proportional to 378,513.61, 567,865.89 and 125,795.43 is: 188,724.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,513.61 : 567,865.89 = 125,795.43 : x
  2. Step 2: Convert to fraction form
    378,513.61/567,865.89 = 125,795.43/x
  3. Step 3: Cross multiply
    378,513.61x = 567,865.89 × 125,795.43
  4. Step 4: Simplify right side
    378,513.61x = 71,434,933,814.88
  5. Step 5: Solve for x
    x = 71,434,933,814.88/378,513.61
  6. Step 6: Final answer
    x = 188,724.88

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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.