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Finding the Fourth Proportional to 622.06, 932.64 and 348.28

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Solution

The fourth proportional to 622.06, 932.64 and 348.28 is: 522.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.06 : 932.64 = 348.28 : x
  2. Step 2: Convert to fraction form
    622.06/932.64 = 348.28/x
  3. Step 3: Cross multiply
    622.06x = 932.64 × 348.28
  4. Step 4: Simplify right side
    622.06x = 324,819.86
  5. Step 5: Solve for x
    x = 324,819.86/622.06
  6. Step 6: Final answer
    x = 522.17

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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.