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Finding the Fourth Proportional to 627,079.97, 940,639.46 and 298,372.73

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Solution

The fourth proportional to 627,079.97, 940,639.46 and 298,372.73 is: 447,568.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,079.97 : 940,639.46 = 298,372.73 : x
  2. Step 2: Convert to fraction form
    627,079.97/940,639.46 = 298,372.73/x
  3. Step 3: Cross multiply
    627,079.97x = 940,639.46 × 298,372.73
  4. Step 4: Simplify right side
    627,079.97x = 280,661,157,430.87
  5. Step 5: Solve for x
    x = 280,661,157,430.87/627,079.97
  6. Step 6: Final answer
    x = 447,568.37

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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.