Home / 725,745.90-1,087,634.70-485,175.90

Finding the Fourth Proportional to 725,745.90, 1,087,634.70 and 485,175.90

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Solution

The fourth proportional to 725,745.90, 1,087,634.70 and 485,175.90 is: 727,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,745.90 : 1,087,634.70 = 485,175.90 : x
  2. Step 2: Convert to fraction form
    725,745.90/1,087,634.70 = 485,175.90/x
  3. Step 3: Cross multiply
    725,745.90x = 1,087,634.70 × 485,175.90
  4. Step 4: Simplify right side
    725,745.90x = 527,694,144,443.73
  5. Step 5: Solve for x
    x = 527,694,144,443.73/725,745.90
  6. Step 6: Final answer
    x = 727,105.93

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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.