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Finding the Fourth Proportional to 881,497.32, 1,321,470.48 and 349,391.84

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Solution

The fourth proportional to 881,497.32, 1,321,470.48 and 349,391.84 is: 523,780.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,497.32 : 1,321,470.48 = 349,391.84 : x
  2. Step 2: Convert to fraction form
    881,497.32/1,321,470.48 = 349,391.84/x
  3. Step 3: Cross multiply
    881,497.32x = 1,321,470.48 × 349,391.84
  4. Step 4: Simplify right side
    881,497.32x = 461,711,002,512.88
  5. Step 5: Solve for x
    x = 461,711,002,512.88/881,497.32
  6. Step 6: Final answer
    x = 523,780.38

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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.