Home / 1,080.12-1,619.44-502.68

Finding the Fourth Proportional to 1,080.12, 1,619.44 and 502.68

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Solution

The fourth proportional to 1,080.12, 1,619.44 and 502.68 is: 753.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080.12 : 1,619.44 = 502.68 : x
  2. Step 2: Convert to fraction form
    1,080.12/1,619.44 = 502.68/x
  3. Step 3: Cross multiply
    1,080.12x = 1,619.44 × 502.68
  4. Step 4: Simplify right side
    1,080.12x = 814,060.10
  5. Step 5: Solve for x
    x = 814,060.10/1,080.12
  6. Step 6: Final answer
    x = 753.68

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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.