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Finding the Fourth Proportional to 633.68, 949.73 and 450.69

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Solution

The fourth proportional to 633.68, 949.73 and 450.69 is: 675.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.68 : 949.73 = 450.69 : x
  2. Step 2: Convert to fraction form
    633.68/949.73 = 450.69/x
  3. Step 3: Cross multiply
    633.68x = 949.73 × 450.69
  4. Step 4: Simplify right side
    633.68x = 428,033.81
  5. Step 5: Solve for x
    x = 428,033.81/633.68
  6. Step 6: Final answer
    x = 675.47

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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.