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Finding the Fourth Proportional to 628.48, 944.11 and 609.04

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Solution

The fourth proportional to 628.48, 944.11 and 609.04 is: 914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.48 : 944.11 = 609.04 : x
  2. Step 2: Convert to fraction form
    628.48/944.11 = 609.04/x
  3. Step 3: Cross multiply
    628.48x = 944.11 × 609.04
  4. Step 4: Simplify right side
    628.48x = 575,001.59
  5. Step 5: Solve for x
    x = 575,001.59/628.48
  6. Step 6: Final answer
    x = 914.90

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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.