Home / 2,239,936.80-3,359,905.20-821,011.20

Finding the Fourth Proportional to 2,239,936.80, 3,359,905.20 and 821,011.20

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Solution

The fourth proportional to 2,239,936.80, 3,359,905.20 and 821,011.20 is: 1,231,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239,936.80 : 3,359,905.20 = 821,011.20 : x
  2. Step 2: Convert to fraction form
    2,239,936.80/3,359,905.20 = 821,011.20/x
  3. Step 3: Cross multiply
    2,239,936.80x = 3,359,905.20 × 821,011.20
  4. Step 4: Simplify right side
    2,239,936.80x = 2,758,519,800,138.24
  5. Step 5: Solve for x
    x = 2,758,519,800,138.24/2,239,936.80
  6. Step 6: Final answer
    x = 1,231,516.80

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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.