Home / 1,115,149.88-1,538,982.92-631,719

Finding the Fourth Proportional to 1,115,149.88, 1,538,982.92 and 631,719

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Solution

The fourth proportional to 1,115,149.88, 1,538,982.92 and 631,719 is: 871,815.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,149.88 : 1,538,982.92 = 631,719 : x
  2. Step 2: Convert to fraction form
    1,115,149.88/1,538,982.92 = 631,719/x
  3. Step 3: Cross multiply
    1,115,149.88x = 1,538,982.92 × 631,719
  4. Step 4: Simplify right side
    1,115,149.88x = 972,204,752,818.78
  5. Step 5: Solve for x
    x = 972,204,752,818.78/1,115,149.88
  6. Step 6: Final answer
    x = 871,815.32

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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.