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Finding the Fourth Proportional to 486,679.93, 729,893.18 and 206,052.73

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Solution

The fourth proportional to 486,679.93, 729,893.18 and 206,052.73 is: 309,025.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,679.93 : 729,893.18 = 206,052.73 : x
  2. Step 2: Convert to fraction form
    486,679.93/729,893.18 = 206,052.73/x
  3. Step 3: Cross multiply
    486,679.93x = 729,893.18 × 206,052.73
  4. Step 4: Simplify right side
    486,679.93x = 150,396,481,317.12
  5. Step 5: Solve for x
    x = 150,396,481,317.12/486,679.93
  6. Step 6: Final answer
    x = 309,025.44

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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.