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Finding the Fourth Proportional to 633.04, 872.87 and 514.69

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Solution

The fourth proportional to 633.04, 872.87 and 514.69 is: 709.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.04 : 872.87 = 514.69 : x
  2. Step 2: Convert to fraction form
    633.04/872.87 = 514.69/x
  3. Step 3: Cross multiply
    633.04x = 872.87 × 514.69
  4. Step 4: Simplify right side
    633.04x = 449,257.46
  5. Step 5: Solve for x
    x = 449,257.46/633.04
  6. Step 6: Final answer
    x = 709.68

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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.