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Finding the Fourth Proportional to 667.16, 998.44 and 529.04

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Solution

The fourth proportional to 667.16, 998.44 and 529.04 is: 791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.16 : 998.44 = 529.04 : x
  2. Step 2: Convert to fraction form
    667.16/998.44 = 529.04/x
  3. Step 3: Cross multiply
    667.16x = 998.44 × 529.04
  4. Step 4: Simplify right side
    667.16x = 528,214.70
  5. Step 5: Solve for x
    x = 528,214.70/667.16
  6. Step 6: Final answer
    x = 791.74

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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.