Home / 1,291,144.97-1,781,996.28-747,187.04

Finding the Fourth Proportional to 1,291,144.97, 1,781,996.28 and 747,187.04

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Solution

The fourth proportional to 1,291,144.97, 1,781,996.28 and 747,187.04 is: 1,031,243.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,144.97 : 1,781,996.28 = 747,187.04 : x
  2. Step 2: Convert to fraction form
    1,291,144.97/1,781,996.28 = 747,187.04/x
  3. Step 3: Cross multiply
    1,291,144.97x = 1,781,996.28 × 747,187.04
  4. Step 4: Simplify right side
    1,291,144.97x = 1,331,484,525,744.21
  5. Step 5: Solve for x
    x = 1,331,484,525,744.21/1,291,144.97
  6. Step 6: Final answer
    x = 1,031,243.24

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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.