Home / 1,049,391.90-1,448,375.91-667,344.78

Finding the Fourth Proportional to 1,049,391.90, 1,448,375.91 and 667,344.78

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Solution

The fourth proportional to 1,049,391.90, 1,448,375.91 and 667,344.78 is: 921,072.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,391.90 : 1,448,375.91 = 667,344.78 : x
  2. Step 2: Convert to fraction form
    1,049,391.90/1,448,375.91 = 667,344.78/x
  3. Step 3: Cross multiply
    1,049,391.90x = 1,448,375.91 × 667,344.78
  4. Step 4: Simplify right side
    1,049,391.90x = 966,566,103,016.25
  5. Step 5: Solve for x
    x = 966,566,103,016.25/1,049,391.90
  6. Step 6: Final answer
    x = 921,072.58

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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.