Home / 454,846.19-681,715.85-321,764.81

Finding the Fourth Proportional to 454,846.19, 681,715.85 and 321,764.81

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Solution

The fourth proportional to 454,846.19, 681,715.85 and 321,764.81 is: 482,255.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,846.19 : 681,715.85 = 321,764.81 : x
  2. Step 2: Convert to fraction form
    454,846.19/681,715.85 = 321,764.81/x
  3. Step 3: Cross multiply
    454,846.19x = 681,715.85 × 321,764.81
  4. Step 4: Simplify right side
    454,846.19x = 219,352,165,931.84
  5. Step 5: Solve for x
    x = 219,352,165,931.84/454,846.19
  6. Step 6: Final answer
    x = 482,255.70

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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.