Home / 1,146.15-1,718.96-324.23

Finding the Fourth Proportional to 1,146.15, 1,718.96 and 324.23

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Solution

The fourth proportional to 1,146.15, 1,718.96 and 324.23 is: 486.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146.15 : 1,718.96 = 324.23 : x
  2. Step 2: Convert to fraction form
    1,146.15/1,718.96 = 324.23/x
  3. Step 3: Cross multiply
    1,146.15x = 1,718.96 × 324.23
  4. Step 4: Simplify right side
    1,146.15x = 557,338.40
  5. Step 5: Solve for x
    x = 557,338.40/1,146.15
  6. Step 6: Final answer
    x = 486.27

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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.