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Finding the Fourth Proportional to 692.96, 955.86 and 472.01

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Solution

The fourth proportional to 692.96, 955.86 and 472.01 is: 651.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.96 : 955.86 = 472.01 : x
  2. Step 2: Convert to fraction form
    692.96/955.86 = 472.01/x
  3. Step 3: Cross multiply
    692.96x = 955.86 × 472.01
  4. Step 4: Simplify right side
    692.96x = 451,175.48
  5. Step 5: Solve for x
    x = 451,175.48/692.96
  6. Step 6: Final answer
    x = 651.08

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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.