Home / 658,249.43-987,408.32-209,005.47

Finding the Fourth Proportional to 658,249.43, 987,408.32 and 209,005.47

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Solution

The fourth proportional to 658,249.43, 987,408.32 and 209,005.47 is: 313,519.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,249.43 : 987,408.32 = 209,005.47 : x
  2. Step 2: Convert to fraction form
    658,249.43/987,408.32 = 209,005.47/x
  3. Step 3: Cross multiply
    658,249.43x = 987,408.32 × 209,005.47
  4. Step 4: Simplify right side
    658,249.43x = 206,373,738,958.48
  5. Step 5: Solve for x
    x = 206,373,738,958.48/658,249.43
  6. Step 6: Final answer
    x = 313,519.06

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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.