Home / 1,146.26-1,719.38-324.52

Finding the Fourth Proportional to 1,146.26, 1,719.38 and 324.52

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Solution

The fourth proportional to 1,146.26, 1,719.38 and 324.52 is: 486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146.26 : 1,719.38 = 324.52 : x
  2. Step 2: Convert to fraction form
    1,146.26/1,719.38 = 324.52/x
  3. Step 3: Cross multiply
    1,146.26x = 1,719.38 × 324.52
  4. Step 4: Simplify right side
    1,146.26x = 557,973.20
  5. Step 5: Solve for x
    x = 557,973.20/1,146.26
  6. Step 6: Final answer
    x = 486.78

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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.