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Finding the Fourth Proportional to 692.24, 955.46 and 482.45

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Solution

The fourth proportional to 692.24, 955.46 and 482.45 is: 665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.24 : 955.46 = 482.45 : x
  2. Step 2: Convert to fraction form
    692.24/955.46 = 482.45/x
  3. Step 3: Cross multiply
    692.24x = 955.46 × 482.45
  4. Step 4: Simplify right side
    692.24x = 460,958.11
  5. Step 5: Solve for x
    x = 460,958.11/692.24
  6. Step 6: Final answer
    x = 665.90

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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.