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Finding the Fourth Proportional to 692.66, 1,034.49 and 627.53

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Solution

The fourth proportional to 692.66, 1,034.49 and 627.53 is: 937.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.66 : 1,034.49 = 627.53 : x
  2. Step 2: Convert to fraction form
    692.66/1,034.49 = 627.53/x
  3. Step 3: Cross multiply
    692.66x = 1,034.49 × 627.53
  4. Step 4: Simplify right side
    692.66x = 649,168.34
  5. Step 5: Solve for x
    x = 649,168.34/692.66
  6. Step 6: Final answer
    x = 937.22

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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.