Home / 2,100,675.24-3,149,143.44-820,991.70

Finding the Fourth Proportional to 2,100,675.24, 3,149,143.44 and 820,991.70

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Solution

The fourth proportional to 2,100,675.24, 3,149,143.44 and 820,991.70 is: 1,230,756.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,675.24 : 3,149,143.44 = 820,991.70 : x
  2. Step 2: Convert to fraction form
    2,100,675.24/3,149,143.44 = 820,991.70/x
  3. Step 3: Cross multiply
    2,100,675.24x = 3,149,143.44 × 820,991.70
  4. Step 4: Simplify right side
    2,100,675.24x = 2,585,420,626,349.45
  5. Step 5: Solve for x
    x = 2,585,420,626,349.45/2,100,675.24
  6. Step 6: Final answer
    x = 1,230,756.94

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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.