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Finding the Fourth Proportional to 692.04, 1,033.65 and 626.05

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Solution

The fourth proportional to 692.04, 1,033.65 and 626.05 is: 935.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.04 : 1,033.65 = 626.05 : x
  2. Step 2: Convert to fraction form
    692.04/1,033.65 = 626.05/x
  3. Step 3: Cross multiply
    692.04x = 1,033.65 × 626.05
  4. Step 4: Simplify right side
    692.04x = 647,121.66
  5. Step 5: Solve for x
    x = 647,121.66/692.04
  6. Step 6: Final answer
    x = 935.09

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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.