Home / 1,098,517.28-1,647,611.76-378,972.32

Finding the Fourth Proportional to 1,098,517.28, 1,647,611.76 and 378,972.32

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Solution

The fourth proportional to 1,098,517.28, 1,647,611.76 and 378,972.32 is: 568,401.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,517.28 : 1,647,611.76 = 378,972.32 : x
  2. Step 2: Convert to fraction form
    1,098,517.28/1,647,611.76 = 378,972.32/x
  3. Step 3: Cross multiply
    1,098,517.28x = 1,647,611.76 × 378,972.32
  4. Step 4: Simplify right side
    1,098,517.28x = 624,399,251,146.48
  5. Step 5: Solve for x
    x = 624,399,251,146.48/1,098,517.28
  6. Step 6: Final answer
    x = 568,401.85

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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.