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Finding the Fourth Proportional to 626.54, 935.22 and 552.65

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Solution

The fourth proportional to 626.54, 935.22 and 552.65 is: 824.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.54 : 935.22 = 552.65 : x
  2. Step 2: Convert to fraction form
    626.54/935.22 = 552.65/x
  3. Step 3: Cross multiply
    626.54x = 935.22 × 552.65
  4. Step 4: Simplify right side
    626.54x = 516,841.89
  5. Step 5: Solve for x
    x = 516,841.89/626.54
  6. Step 6: Final answer
    x = 824.91

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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.