Home / 1,328,591.20-1,992,692.40-381,863.20

Finding the Fourth Proportional to 1,328,591.20, 1,992,692.40 and 381,863.20

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Solution

The fourth proportional to 1,328,591.20, 1,992,692.40 and 381,863.20 is: 572,738.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,591.20 : 1,992,692.40 = 381,863.20 : x
  2. Step 2: Convert to fraction form
    1,328,591.20/1,992,692.40 = 381,863.20/x
  3. Step 3: Cross multiply
    1,328,591.20x = 1,992,692.40 × 381,863.20
  4. Step 4: Simplify right side
    1,328,591.20x = 760,935,896,479.68
  5. Step 5: Solve for x
    x = 760,935,896,479.68/1,328,591.20
  6. Step 6: Final answer
    x = 572,738.93

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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.