Home / 454,947.31-681,867.53-321,865.93

Finding the Fourth Proportional to 454,947.31, 681,867.53 and 321,865.93

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Solution

The fourth proportional to 454,947.31, 681,867.53 and 321,865.93 is: 482,407.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,947.31 : 681,867.53 = 321,865.93 : x
  2. Step 2: Convert to fraction form
    454,947.31/681,867.53 = 321,865.93/x
  3. Step 3: Cross multiply
    454,947.31x = 681,867.53 × 321,865.93
  4. Step 4: Simplify right side
    454,947.31x = 219,469,926,680.25
  5. Step 5: Solve for x
    x = 219,469,926,680.25/454,947.31
  6. Step 6: Final answer
    x = 482,407.35

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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.