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Finding the Fourth Proportional to 625.65, 932.77 and 609.68

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Solution

The fourth proportional to 625.65, 932.77 and 609.68 is: 908.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    625.65 : 932.77 = 609.68 : x
  2. Step 2: Convert to fraction form
    625.65/932.77 = 609.68/x
  3. Step 3: Cross multiply
    625.65x = 932.77 × 609.68
  4. Step 4: Simplify right side
    625.65x = 568,688.07
  5. Step 5: Solve for x
    x = 568,688.07/625.65
  6. Step 6: Final answer
    x = 908.96

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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.