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Finding the Fourth Proportional to 701,978.52, 1,053,099.02 and 281,287.20

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Solution

The fourth proportional to 701,978.52, 1,053,099.02 and 281,287.20 is: 421,983.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,978.52 : 1,053,099.02 = 281,287.20 : x
  2. Step 2: Convert to fraction form
    701,978.52/1,053,099.02 = 281,287.20/x
  3. Step 3: Cross multiply
    701,978.52x = 1,053,099.02 × 281,287.20
  4. Step 4: Simplify right side
    701,978.52x = 296,223,274,658.54
  5. Step 5: Solve for x
    x = 296,223,274,658.54/701,978.52
  6. Step 6: Final answer
    x = 421,983.39

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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.