Home / 682,129.62-1,022,213.54-469,138.03

Finding the Fourth Proportional to 682,129.62, 1,022,213.54 and 469,138.03

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Solution

The fourth proportional to 682,129.62, 1,022,213.54 and 469,138.03 is: 703,032.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,129.62 : 1,022,213.54 = 469,138.03 : x
  2. Step 2: Convert to fraction form
    682,129.62/1,022,213.54 = 469,138.03/x
  3. Step 3: Cross multiply
    682,129.62x = 1,022,213.54 × 469,138.03
  4. Step 4: Simplify right side
    682,129.62x = 479,559,246,394.93
  5. Step 5: Solve for x
    x = 479,559,246,394.93/682,129.62
  6. Step 6: Final answer
    x = 703,032.43

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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.