Home / 454,949.06-681,870.16-321,867.68

Finding the Fourth Proportional to 454,949.06, 681,870.16 and 321,867.68

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Solution

The fourth proportional to 454,949.06, 681,870.16 and 321,867.68 is: 482,409.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,949.06 : 681,870.16 = 321,867.68 : x
  2. Step 2: Convert to fraction form
    454,949.06/681,870.16 = 321,867.68/x
  3. Step 3: Cross multiply
    454,949.06x = 681,870.16 × 321,867.68
  4. Step 4: Simplify right side
    454,949.06x = 219,471,964,851.09
  5. Step 5: Solve for x
    x = 219,471,964,851.09/454,949.06
  6. Step 6: Final answer
    x = 482,409.98

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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.