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Finding the Fourth Proportional to 692.06, 1,033.61 and 626.93

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Solution

The fourth proportional to 692.06, 1,033.61 and 626.93 is: 936.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.06 : 1,033.61 = 626.93 : x
  2. Step 2: Convert to fraction form
    692.06/1,033.61 = 626.93/x
  3. Step 3: Cross multiply
    692.06x = 1,033.61 × 626.93
  4. Step 4: Simplify right side
    692.06x = 647,997.98
  5. Step 5: Solve for x
    x = 647,997.98/692.06
  6. Step 6: Final answer
    x = 936.33

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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.