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Finding the Fourth Proportional to 622.77, 932.93 and 439.59

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Solution

The fourth proportional to 622.77, 932.93 and 439.59 is: 658.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.77 : 932.93 = 439.59 : x
  2. Step 2: Convert to fraction form
    622.77/932.93 = 439.59/x
  3. Step 3: Cross multiply
    622.77x = 932.93 × 439.59
  4. Step 4: Simplify right side
    622.77x = 410,104.50
  5. Step 5: Solve for x
    x = 410,104.50/622.77
  6. Step 6: Final answer
    x = 658.52

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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.