Home / 1,080.25-1,619.42-559.97

Finding the Fourth Proportional to 1,080.25, 1,619.42 and 559.97

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Solution

The fourth proportional to 1,080.25, 1,619.42 and 559.97 is: 839.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080.25 : 1,619.42 = 559.97 : x
  2. Step 2: Convert to fraction form
    1,080.25/1,619.42 = 559.97/x
  3. Step 3: Cross multiply
    1,080.25x = 1,619.42 × 559.97
  4. Step 4: Simplify right side
    1,080.25x = 906,815.72
  5. Step 5: Solve for x
    x = 906,815.72/1,080.25
  6. Step 6: Final answer
    x = 839.45

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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.