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Finding the Fourth Proportional to 418,082.34, 577,193.04 and 275,257.62

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Solution

The fourth proportional to 418,082.34, 577,193.04 and 275,257.62 is: 380,013.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,082.34 : 577,193.04 = 275,257.62 : x
  2. Step 2: Convert to fraction form
    418,082.34/577,193.04 = 275,257.62/x
  3. Step 3: Cross multiply
    418,082.34x = 577,193.04 × 275,257.62
  4. Step 4: Simplify right side
    418,082.34x = 158,876,782,470.97
  5. Step 5: Solve for x
    x = 158,876,782,470.97/418,082.34
  6. Step 6: Final answer
    x = 380,013.14

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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.