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Finding the Fourth Proportional to 692.32, 955.12 and 443.59

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Solution

The fourth proportional to 692.32, 955.12 and 443.59 is: 611.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.32 : 955.12 = 443.59 : x
  2. Step 2: Convert to fraction form
    692.32/955.12 = 443.59/x
  3. Step 3: Cross multiply
    692.32x = 955.12 × 443.59
  4. Step 4: Simplify right side
    692.32x = 423,674.69
  5. Step 5: Solve for x
    x = 423,674.69/692.32
  6. Step 6: Final answer
    x = 611.96

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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.