Home / 1,253,660.74-1,730,003.31-680,687.80

Finding the Fourth Proportional to 1,253,660.74, 1,730,003.31 and 680,687.80

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Solution

The fourth proportional to 1,253,660.74, 1,730,003.31 and 680,687.80 is: 939,322.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,660.74 : 1,730,003.31 = 680,687.80 : x
  2. Step 2: Convert to fraction form
    1,253,660.74/1,730,003.31 = 680,687.80/x
  3. Step 3: Cross multiply
    1,253,660.74x = 1,730,003.31 × 680,687.80
  4. Step 4: Simplify right side
    1,253,660.74x = 1,177,592,142,751.61
  5. Step 5: Solve for x
    x = 1,177,592,142,751.61/1,253,660.74
  6. Step 6: Final answer
    x = 939,322.82

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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.