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Finding the Fourth Proportional to 883,318.62, 1,324,978.38 and 284,279.70

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Solution

The fourth proportional to 883,318.62, 1,324,978.38 and 284,279.70 is: 426,419.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,318.62 : 1,324,978.38 = 284,279.70 : x
  2. Step 2: Convert to fraction form
    883,318.62/1,324,978.38 = 284,279.70/x
  3. Step 3: Cross multiply
    883,318.62x = 1,324,978.38 × 284,279.70
  4. Step 4: Simplify right side
    883,318.62x = 376,664,456,372.89
  5. Step 5: Solve for x
    x = 376,664,456,372.89/883,318.62
  6. Step 6: Final answer
    x = 426,419.69

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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.