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Finding the Fourth Proportional to 489,261.70, 733,892.56 and 329,829.40

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Solution

The fourth proportional to 489,261.70, 733,892.56 and 329,829.40 is: 494,744.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,261.70 : 733,892.56 = 329,829.40 : x
  2. Step 2: Convert to fraction form
    489,261.70/733,892.56 = 329,829.40/x
  3. Step 3: Cross multiply
    489,261.70x = 733,892.56 × 329,829.40
  4. Step 4: Simplify right side
    489,261.70x = 242,059,342,729.26
  5. Step 5: Solve for x
    x = 242,059,342,729.26/489,261.70
  6. Step 6: Final answer
    x = 494,744.11

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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.