Home / 3,288,439.71-4,538,624.31-1,912,209.21

Finding the Fourth Proportional to 3,288,439.71, 4,538,624.31 and 1,912,209.21

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Solution

The fourth proportional to 3,288,439.71, 4,538,624.31 and 1,912,209.21 is: 2,639,184.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288,439.71 : 4,538,624.31 = 1,912,209.21 : x
  2. Step 2: Convert to fraction form
    3,288,439.71/4,538,624.31 = 1,912,209.21/x
  3. Step 3: Cross multiply
    3,288,439.71x = 4,538,624.31 × 1,912,209.21
  4. Step 4: Simplify right side
    3,288,439.71x = 8,678,799,206,311.90
  5. Step 5: Solve for x
    x = 8,678,799,206,311.90/3,288,439.71
  6. Step 6: Final answer
    x = 2,639,184.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.