Home / 2,120,542.20-3,179,723.70-624,439.80

Finding the Fourth Proportional to 2,120,542.20, 3,179,723.70 and 624,439.80

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Solution

The fourth proportional to 2,120,542.20, 3,179,723.70 and 624,439.80 is: 936,338.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,542.20 : 3,179,723.70 = 624,439.80 : x
  2. Step 2: Convert to fraction form
    2,120,542.20/3,179,723.70 = 624,439.80/x
  3. Step 3: Cross multiply
    2,120,542.20x = 3,179,723.70 × 624,439.80
  4. Step 4: Simplify right side
    2,120,542.20x = 1,985,546,031,283.26
  5. Step 5: Solve for x
    x = 1,985,546,031,283.26/2,120,542.20
  6. Step 6: Final answer
    x = 936,338.84

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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.