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Finding the Fourth Proportional to 950.22, 1,426.53 and 663.18

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Solution

The fourth proportional to 950.22, 1,426.53 and 663.18 is: 995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.22 : 1,426.53 = 663.18 : x
  2. Step 2: Convert to fraction form
    950.22/1,426.53 = 663.18/x
  3. Step 3: Cross multiply
    950.22x = 1,426.53 × 663.18
  4. Step 4: Simplify right side
    950.22x = 946,046.17
  5. Step 5: Solve for x
    x = 946,046.17/950.22
  6. Step 6: Final answer
    x = 995.61

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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.