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Finding the Fourth Proportional to 633.96, 945.26 and 609.89

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Solution

The fourth proportional to 633.96, 945.26 and 609.89 is: 909.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.96 : 945.26 = 609.89 : x
  2. Step 2: Convert to fraction form
    633.96/945.26 = 609.89/x
  3. Step 3: Cross multiply
    633.96x = 945.26 × 609.89
  4. Step 4: Simplify right side
    633.96x = 576,496.85
  5. Step 5: Solve for x
    x = 576,496.85/633.96
  6. Step 6: Final answer
    x = 909.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.