Home / 454,954.56-681,878.40-321,873.18

Finding the Fourth Proportional to 454,954.56, 681,878.40 and 321,873.18

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Solution

The fourth proportional to 454,954.56, 681,878.40 and 321,873.18 is: 482,418.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,954.56 : 681,878.40 = 321,873.18 : x
  2. Step 2: Convert to fraction form
    454,954.56/681,878.40 = 321,873.18/x
  3. Step 3: Cross multiply
    454,954.56x = 681,878.40 × 321,873.18
  4. Step 4: Simplify right side
    454,954.56x = 219,478,368,981.31
  5. Step 5: Solve for x
    x = 219,478,368,981.31/454,954.56
  6. Step 6: Final answer
    x = 482,418.22

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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.