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Finding the Fourth Proportional to 626.92, 935.81 and 575.56

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Solution

The fourth proportional to 626.92, 935.81 and 575.56 is: 859.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.92 : 935.81 = 575.56 : x
  2. Step 2: Convert to fraction form
    626.92/935.81 = 575.56/x
  3. Step 3: Cross multiply
    626.92x = 935.81 × 575.56
  4. Step 4: Simplify right side
    626.92x = 538,614.80
  5. Step 5: Solve for x
    x = 538,614.80/626.92
  6. Step 6: Final answer
    x = 859.14

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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.