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Finding the Fourth Proportional to 621.92, 934.83 and 348.54

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Solution

The fourth proportional to 621.92, 934.83 and 348.54 is: 523.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    621.92 : 934.83 = 348.54 : x
  2. Step 2: Convert to fraction form
    621.92/934.83 = 348.54/x
  3. Step 3: Cross multiply
    621.92x = 934.83 × 348.54
  4. Step 4: Simplify right side
    621.92x = 325,825.65
  5. Step 5: Solve for x
    x = 325,825.65/621.92
  6. Step 6: Final answer
    x = 523.91

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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.