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Finding the Fourth Proportional to 484,540.56, 668,659.28 and 269,680.70

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Solution

The fourth proportional to 484,540.56, 668,659.28 and 269,680.70 is: 372,155.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,540.56 : 668,659.28 = 269,680.70 : x
  2. Step 2: Convert to fraction form
    484,540.56/668,659.28 = 269,680.70/x
  3. Step 3: Cross multiply
    484,540.56x = 668,659.28 × 269,680.70
  4. Step 4: Simplify right side
    484,540.56x = 180,324,502,691.90
  5. Step 5: Solve for x
    x = 180,324,502,691.90/484,540.56
  6. Step 6: Final answer
    x = 372,155.64

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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.