Home / 1,318.67-1,976.48-496.41

Finding the Fourth Proportional to 1,318.67, 1,976.48 and 496.41

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Solution

The fourth proportional to 1,318.67, 1,976.48 and 496.41 is: 744.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.67 : 1,976.48 = 496.41 : x
  2. Step 2: Convert to fraction form
    1,318.67/1,976.48 = 496.41/x
  3. Step 3: Cross multiply
    1,318.67x = 1,976.48 × 496.41
  4. Step 4: Simplify right side
    1,318.67x = 981,144.44
  5. Step 5: Solve for x
    x = 981,144.44/1,318.67
  6. Step 6: Final answer
    x = 744.04

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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.