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Finding the Fourth Proportional to 493,874.50, 681,532.87 and 289,922.17

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Solution

The fourth proportional to 493,874.50, 681,532.87 and 289,922.17 is: 400,084.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,874.50 : 681,532.87 = 289,922.17 : x
  2. Step 2: Convert to fraction form
    493,874.50/681,532.87 = 289,922.17/x
  3. Step 3: Cross multiply
    493,874.50x = 681,532.87 × 289,922.17
  4. Step 4: Simplify right side
    493,874.50x = 197,591,487,989.57
  5. Step 5: Solve for x
    x = 197,591,487,989.57/493,874.50
  6. Step 6: Final answer
    x = 400,084.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.