Home / 1,131,091.26-1,561,657.49-868,979.64

Finding the Fourth Proportional to 1,131,091.26, 1,561,657.49 and 868,979.64

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Solution

The fourth proportional to 1,131,091.26, 1,561,657.49 and 868,979.64 is: 1,199,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,091.26 : 1,561,657.49 = 868,979.64 : x
  2. Step 2: Convert to fraction form
    1,131,091.26/1,561,657.49 = 868,979.64/x
  3. Step 3: Cross multiply
    1,131,091.26x = 1,561,657.49 × 868,979.64
  4. Step 4: Simplify right side
    1,131,091.26x = 1,357,048,568,233.49
  5. Step 5: Solve for x
    x = 1,357,048,568,233.49/1,131,091.26
  6. Step 6: Final answer
    x = 1,199,769.30

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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.