Home / 1,298,720.55-1,792,229.13-725,760.57

Finding the Fourth Proportional to 1,298,720.55, 1,792,229.13 and 725,760.57

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Solution

The fourth proportional to 1,298,720.55, 1,792,229.13 and 725,760.57 is: 1,001,546.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,720.55 : 1,792,229.13 = 725,760.57 : x
  2. Step 2: Convert to fraction form
    1,298,720.55/1,792,229.13 = 725,760.57/x
  3. Step 3: Cross multiply
    1,298,720.55x = 1,792,229.13 × 725,760.57
  4. Step 4: Simplify right side
    1,298,720.55x = 1,300,729,234,959.40
  5. Step 5: Solve for x
    x = 1,300,729,234,959.40/1,298,720.55
  6. Step 6: Final answer
    x = 1,001,546.66

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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.