Home / 1,195.28-1,792.80-329.60

Finding the Fourth Proportional to 1,195.28, 1,792.80 and 329.60

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Solution

The fourth proportional to 1,195.28, 1,792.80 and 329.60 is: 494.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.28 : 1,792.80 = 329.60 : x
  2. Step 2: Convert to fraction form
    1,195.28/1,792.80 = 329.60/x
  3. Step 3: Cross multiply
    1,195.28x = 1,792.80 × 329.60
  4. Step 4: Simplify right side
    1,195.28x = 590,906.88
  5. Step 5: Solve for x
    x = 590,906.88/1,195.28
  6. Step 6: Final answer
    x = 494.37

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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.