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Finding the Fourth Proportional to 692.33, 955.16 and 443.61

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Solution

The fourth proportional to 692.33, 955.16 and 443.61 is: 612.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.33 : 955.16 = 443.61 : x
  2. Step 2: Convert to fraction form
    692.33/955.16 = 443.61/x
  3. Step 3: Cross multiply
    692.33x = 955.16 × 443.61
  4. Step 4: Simplify right side
    692.33x = 423,716.31
  5. Step 5: Solve for x
    x = 423,716.31/692.33
  6. Step 6: Final answer
    x = 612.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.