Home / 3,108,900.80-4,664,007.30-979,200.20

Finding the Fourth Proportional to 3,108,900.80, 4,664,007.30 and 979,200.20

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Solution

The fourth proportional to 3,108,900.80, 4,664,007.30 and 979,200.20 is: 1,469,006.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108,900.80 : 4,664,007.30 = 979,200.20 : x
  2. Step 2: Convert to fraction form
    3,108,900.80/4,664,007.30 = 979,200.20/x
  3. Step 3: Cross multiply
    3,108,900.80x = 4,664,007.30 × 979,200.20
  4. Step 4: Simplify right side
    3,108,900.80x = 4,566,996,880,961.46
  5. Step 5: Solve for x
    x = 4,566,996,880,961.46/3,108,900.80
  6. Step 6: Final answer
    x = 1,469,006.95

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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.