Home / 781,665.85-1,172,593.34-276,123.38

Finding the Fourth Proportional to 781,665.85, 1,172,593.34 and 276,123.38

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Solution

The fourth proportional to 781,665.85, 1,172,593.34 and 276,123.38 is: 414,218.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,665.85 : 1,172,593.34 = 276,123.38 : x
  2. Step 2: Convert to fraction form
    781,665.85/1,172,593.34 = 276,123.38/x
  3. Step 3: Cross multiply
    781,665.85x = 1,172,593.34 × 276,123.38
  4. Step 4: Simplify right side
    781,665.85x = 323,780,438,347.20
  5. Step 5: Solve for x
    x = 323,780,438,347.20/781,665.85
  6. Step 6: Final answer
    x = 414,218.48

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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.