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Finding the Fourth Proportional to 490,211.46, 676,565.46 and 299,334.96

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Solution

The fourth proportional to 490,211.46, 676,565.46 and 299,334.96 is: 413,127.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,211.46 : 676,565.46 = 299,334.96 : x
  2. Step 2: Convert to fraction form
    490,211.46/676,565.46 = 299,334.96/x
  3. Step 3: Cross multiply
    490,211.46x = 676,565.46 × 299,334.96
  4. Step 4: Simplify right side
    490,211.46x = 202,519,694,906.48
  5. Step 5: Solve for x
    x = 202,519,694,906.48/490,211.46
  6. Step 6: Final answer
    x = 413,127.21

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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.