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Finding the Fourth Proportional to 633.80, 874.26 and 446.96

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Solution

The fourth proportional to 633.80, 874.26 and 446.96 is: 616.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.80 : 874.26 = 446.96 : x
  2. Step 2: Convert to fraction form
    633.80/874.26 = 446.96/x
  3. Step 3: Cross multiply
    633.80x = 874.26 × 446.96
  4. Step 4: Simplify right side
    633.80x = 390,759.25
  5. Step 5: Solve for x
    x = 390,759.25/633.80
  6. Step 6: Final answer
    x = 616.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.