Home / 987,198.78-1,480,610.82-481,250.91

Finding the Fourth Proportional to 987,198.78, 1,480,610.82 and 481,250.91

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Solution

The fourth proportional to 987,198.78, 1,480,610.82 and 481,250.91 is: 721,785.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,198.78 : 1,480,610.82 = 481,250.91 : x
  2. Step 2: Convert to fraction form
    987,198.78/1,480,610.82 = 481,250.91/x
  3. Step 3: Cross multiply
    987,198.78x = 1,480,610.82 × 481,250.91
  4. Step 4: Simplify right side
    987,198.78x = 712,545,304,480.85
  5. Step 5: Solve for x
    x = 712,545,304,480.85/987,198.78
  6. Step 6: Final answer
    x = 721,785.03

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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.