Home / 1,146.29-1,719.63-324.81

Finding the Fourth Proportional to 1,146.29, 1,719.63 and 324.81

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Solution

The fourth proportional to 1,146.29, 1,719.63 and 324.81 is: 487.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146.29 : 1,719.63 = 324.81 : x
  2. Step 2: Convert to fraction form
    1,146.29/1,719.63 = 324.81/x
  3. Step 3: Cross multiply
    1,146.29x = 1,719.63 × 324.81
  4. Step 4: Simplify right side
    1,146.29x = 558,553.02
  5. Step 5: Solve for x
    x = 558,553.02/1,146.29
  6. Step 6: Final answer
    x = 487.27

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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.