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Finding the Fourth Proportional to 626.84, 938.33 and 564.87

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Solution

The fourth proportional to 626.84, 938.33 and 564.87 is: 845.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.84 : 938.33 = 564.87 : x
  2. Step 2: Convert to fraction form
    626.84/938.33 = 564.87/x
  3. Step 3: Cross multiply
    626.84x = 938.33 × 564.87
  4. Step 4: Simplify right side
    626.84x = 530,033.05
  5. Step 5: Solve for x
    x = 530,033.05/626.84
  6. Step 6: Final answer
    x = 845.57

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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.