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Finding the Fourth Proportional to 692.08, 1,036.92 and 529.28

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Solution

The fourth proportional to 692.08, 1,036.92 and 529.28 is: 793.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.08 : 1,036.92 = 529.28 : x
  2. Step 2: Convert to fraction form
    692.08/1,036.92 = 529.28/x
  3. Step 3: Cross multiply
    692.08x = 1,036.92 × 529.28
  4. Step 4: Simplify right side
    692.08x = 548,821.02
  5. Step 5: Solve for x
    x = 548,821.02/692.08
  6. Step 6: Final answer
    x = 793.00

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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.