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Finding the Fourth Proportional to 440,546.43, 660,146.84 and 327,680.83

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Solution

The fourth proportional to 440,546.43, 660,146.84 and 327,680.83 is: 491,020.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,546.43 : 660,146.84 = 327,680.83 : x
  2. Step 2: Convert to fraction form
    440,546.43/660,146.84 = 327,680.83/x
  3. Step 3: Cross multiply
    440,546.43x = 660,146.84 × 327,680.83
  4. Step 4: Simplify right side
    440,546.43x = 216,317,464,453.08
  5. Step 5: Solve for x
    x = 216,317,464,453.08/440,546.43
  6. Step 6: Final answer
    x = 491,020.81

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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.