Home / 454,949.56-681,870.91-321,868.18

Finding the Fourth Proportional to 454,949.56, 681,870.91 and 321,868.18

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Solution

The fourth proportional to 454,949.56, 681,870.91 and 321,868.18 is: 482,410.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,949.56 : 681,870.91 = 321,868.18 : x
  2. Step 2: Convert to fraction form
    454,949.56/681,870.91 = 321,868.18/x
  3. Step 3: Cross multiply
    454,949.56x = 681,870.91 × 321,868.18
  4. Step 4: Simplify right side
    454,949.56x = 219,472,548,796.64
  5. Step 5: Solve for x
    x = 219,472,548,796.64/454,949.56
  6. Step 6: Final answer
    x = 482,410.73

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1.5x scale

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.