Home / 1,332,336.32-1,998,485.88-321,449.80

Finding the Fourth Proportional to 1,332,336.32, 1,998,485.88 and 321,449.80

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Solution

The fourth proportional to 1,332,336.32, 1,998,485.88 and 321,449.80 is: 482,170.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,336.32 : 1,998,485.88 = 321,449.80 : x
  2. Step 2: Convert to fraction form
    1,332,336.32/1,998,485.88 = 321,449.80/x
  3. Step 3: Cross multiply
    1,332,336.32x = 1,998,485.88 × 321,449.80
  4. Step 4: Simplify right side
    1,332,336.32x = 642,412,886,428.82
  5. Step 5: Solve for x
    x = 642,412,886,428.82/1,332,336.32
  6. Step 6: Final answer
    x = 482,170.21

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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.