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Finding the Fourth Proportional to 489,251.70, 733,877.56 and 329,819.40

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Solution

The fourth proportional to 489,251.70, 733,877.56 and 329,819.40 is: 494,729.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,251.70 : 733,877.56 = 329,819.40 : x
  2. Step 2: Convert to fraction form
    489,251.70/733,877.56 = 329,819.40/x
  3. Step 3: Cross multiply
    489,251.70x = 733,877.56 × 329,819.40
  4. Step 4: Simplify right side
    489,251.70x = 242,047,056,512.66
  5. Step 5: Solve for x
    x = 242,047,056,512.66/489,251.70
  6. Step 6: Final answer
    x = 494,729.11

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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.