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Finding the Fourth Proportional to 481,487.25, 721,960.74 and 329,855.61

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Solution

The fourth proportional to 481,487.25, 721,960.74 and 329,855.61 is: 494,598.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,487.25 : 721,960.74 = 329,855.61 : x
  2. Step 2: Convert to fraction form
    481,487.25/721,960.74 = 329,855.61/x
  3. Step 3: Cross multiply
    481,487.25x = 721,960.74 × 329,855.61
  4. Step 4: Simplify right side
    481,487.25x = 238,142,800,288.75
  5. Step 5: Solve for x
    x = 238,142,800,288.75/481,487.25
  6. Step 6: Final answer
    x = 494,598.35

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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.