Home / 1,252,964.62-1,729,092.05-680,004.78

Finding the Fourth Proportional to 1,252,964.62, 1,729,092.05 and 680,004.78

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Solution

The fourth proportional to 1,252,964.62, 1,729,092.05 and 680,004.78 is: 938,407.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,964.62 : 1,729,092.05 = 680,004.78 : x
  2. Step 2: Convert to fraction form
    1,252,964.62/1,729,092.05 = 680,004.78/x
  3. Step 3: Cross multiply
    1,252,964.62x = 1,729,092.05 × 680,004.78
  4. Step 4: Simplify right side
    1,252,964.62x = 1,175,790,859,060.00
  5. Step 5: Solve for x
    x = 1,175,790,859,060.00/1,252,964.62
  6. Step 6: Final answer
    x = 938,407.07

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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.