Home / 1,190.26-1,785.25-324.64

Finding the Fourth Proportional to 1,190.26, 1,785.25 and 324.64

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Solution

The fourth proportional to 1,190.26, 1,785.25 and 324.64 is: 486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.26 : 1,785.25 = 324.64 : x
  2. Step 2: Convert to fraction form
    1,190.26/1,785.25 = 324.64/x
  3. Step 3: Cross multiply
    1,190.26x = 1,785.25 × 324.64
  4. Step 4: Simplify right side
    1,190.26x = 579,553.01
  5. Step 5: Solve for x
    x = 579,553.01/1,190.26
  6. Step 6: Final answer
    x = 486.91

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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.