Home / 1,086,127.80-1,629,386.10-455,105.40

Finding the Fourth Proportional to 1,086,127.80, 1,629,386.10 and 455,105.40

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Solution

The fourth proportional to 1,086,127.80, 1,629,386.10 and 455,105.40 is: 682,739.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,127.80 : 1,629,386.10 = 455,105.40 : x
  2. Step 2: Convert to fraction form
    1,086,127.80/1,629,386.10 = 455,105.40/x
  3. Step 3: Cross multiply
    1,086,127.80x = 1,629,386.10 × 455,105.40
  4. Step 4: Simplify right side
    1,086,127.80x = 741,542,412,794.94
  5. Step 5: Solve for x
    x = 741,542,412,794.94/1,086,127.80
  6. Step 6: Final answer
    x = 682,739.56

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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.