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Finding the Fourth Proportional to 667,679.67, 1,001,520.75 and 162,241.07

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Solution

The fourth proportional to 667,679.67, 1,001,520.75 and 162,241.07 is: 243,361.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,679.67 : 1,001,520.75 = 162,241.07 : x
  2. Step 2: Convert to fraction form
    667,679.67/1,001,520.75 = 162,241.07/x
  3. Step 3: Cross multiply
    667,679.67x = 1,001,520.75 × 162,241.07
  4. Step 4: Simplify right side
    667,679.67x = 162,487,793,099.60
  5. Step 5: Solve for x
    x = 162,487,793,099.60/667,679.67
  6. Step 6: Final answer
    x = 243,361.90

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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.