Home / 454,947.61-682,396.77-139,405.44

Finding the Fourth Proportional to 454,947.61, 682,396.77 and 139,405.44

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Solution

The fourth proportional to 454,947.61, 682,396.77 and 139,405.44 is: 209,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,947.61 : 682,396.77 = 139,405.44 : x
  2. Step 2: Convert to fraction form
    454,947.61/682,396.77 = 139,405.44/x
  3. Step 3: Cross multiply
    454,947.61x = 682,396.77 × 139,405.44
  4. Step 4: Simplify right side
    454,947.61x = 95,129,821,976.43
  5. Step 5: Solve for x
    x = 95,129,821,976.43/454,947.61
  6. Step 6: Final answer
    x = 209,100.61

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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.