Home / 1,253,132.66-1,729,324.82-680,172.95

Finding the Fourth Proportional to 1,253,132.66, 1,729,324.82 and 680,172.95

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Solution

The fourth proportional to 1,253,132.66, 1,729,324.82 and 680,172.95 is: 938,639.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,132.66 : 1,729,324.82 = 680,172.95 : x
  2. Step 2: Convert to fraction form
    1,253,132.66/1,729,324.82 = 680,172.95/x
  3. Step 3: Cross multiply
    1,253,132.66x = 1,729,324.82 × 680,172.95
  4. Step 4: Simplify right side
    1,253,132.66x = 1,176,239,964,327.62
  5. Step 5: Solve for x
    x = 1,176,239,964,327.62/1,253,132.66
  6. Step 6: Final answer
    x = 938,639.62

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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.