Home / 1,252,963.62-1,729,090.67-680,003.78

Finding the Fourth Proportional to 1,252,963.62, 1,729,090.67 and 680,003.78

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Solution

The fourth proportional to 1,252,963.62, 1,729,090.67 and 680,003.78 is: 938,405.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,963.62 : 1,729,090.67 = 680,003.78 : x
  2. Step 2: Convert to fraction form
    1,252,963.62/1,729,090.67 = 680,003.78/x
  3. Step 3: Cross multiply
    1,252,963.62x = 1,729,090.67 × 680,003.78
  4. Step 4: Simplify right side
    1,252,963.62x = 1,175,788,179,517.26
  5. Step 5: Solve for x
    x = 1,175,788,179,517.26/1,252,963.62
  6. Step 6: Final answer
    x = 938,405.68

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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.