Home / 1,261,103.80-1,891,655.70-1,144,982.20

Finding the Fourth Proportional to 1,261,103.80, 1,891,655.70 and 1,144,982.20

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Solution

The fourth proportional to 1,261,103.80, 1,891,655.70 and 1,144,982.20 is: 1,717,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,103.80 : 1,891,655.70 = 1,144,982.20 : x
  2. Step 2: Convert to fraction form
    1,261,103.80/1,891,655.70 = 1,144,982.20/x
  3. Step 3: Cross multiply
    1,261,103.80x = 1,891,655.70 × 1,144,982.20
  4. Step 4: Simplify right side
    1,261,103.80x = 2,165,912,105,028.54
  5. Step 5: Solve for x
    x = 2,165,912,105,028.54/1,261,103.80
  6. Step 6: Final answer
    x = 1,717,473.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.