Home / 1,098,198.90-1,647,568.35-378,551.70

Finding the Fourth Proportional to 1,098,198.90, 1,647,568.35 and 378,551.70

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Solution

The fourth proportional to 1,098,198.90, 1,647,568.35 and 378,551.70 is: 567,920.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,198.90 : 1,647,568.35 = 378,551.70 : x
  2. Step 2: Convert to fraction form
    1,098,198.90/1,647,568.35 = 378,551.70/x
  3. Step 3: Cross multiply
    1,098,198.90x = 1,647,568.35 × 378,551.70
  4. Step 4: Simplify right side
    1,098,198.90x = 623,689,799,758.70
  5. Step 5: Solve for x
    x = 623,689,799,758.70/1,098,198.90
  6. Step 6: Final answer
    x = 567,920.62

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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.