Home / 1,231,072.20-1,842,407.10-1,031,617.80

Finding the Fourth Proportional to 1,231,072.20, 1,842,407.10 and 1,031,617.80

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Solution

The fourth proportional to 1,231,072.20, 1,842,407.10 and 1,031,617.80 is: 1,543,906.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,072.20 : 1,842,407.10 = 1,031,617.80 : x
  2. Step 2: Convert to fraction form
    1,231,072.20/1,842,407.10 = 1,031,617.80/x
  3. Step 3: Cross multiply
    1,231,072.20x = 1,842,407.10 × 1,031,617.80
  4. Step 4: Simplify right side
    1,231,072.20x = 1,900,659,959,206.38
  5. Step 5: Solve for x
    x = 1,900,659,959,206.38/1,231,072.20
  6. Step 6: Final answer
    x = 1,543,906.17

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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.