Home / 454,893.28-681,786.36-321,811.96

Finding the Fourth Proportional to 454,893.28, 681,786.36 and 321,811.96

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Solution

The fourth proportional to 454,893.28, 681,786.36 and 321,811.96 is: 482,326.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,893.28 : 681,786.36 = 321,811.96 : x
  2. Step 2: Convert to fraction form
    454,893.28/681,786.36 = 321,811.96/x
  3. Step 3: Cross multiply
    454,893.28x = 681,786.36 × 321,811.96
  4. Step 4: Simplify right side
    454,893.28x = 219,407,004,812.87
  5. Step 5: Solve for x
    x = 219,407,004,812.87/454,893.28
  6. Step 6: Final answer
    x = 482,326.33

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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.