Home / 1,291,143.97-1,781,994.90-747,186.04

Finding the Fourth Proportional to 1,291,143.97, 1,781,994.90 and 747,186.04

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Solution

The fourth proportional to 1,291,143.97, 1,781,994.90 and 747,186.04 is: 1,031,241.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,143.97 : 1,781,994.90 = 747,186.04 : x
  2. Step 2: Convert to fraction form
    1,291,143.97/1,781,994.90 = 747,186.04/x
  3. Step 3: Cross multiply
    1,291,143.97x = 1,781,994.90 × 747,186.04
  4. Step 4: Simplify right side
    1,291,143.97x = 1,331,481,712,631.20
  5. Step 5: Solve for x
    x = 1,331,481,712,631.20/1,291,143.97
  6. Step 6: Final answer
    x = 1,031,241.86

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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.