Home / 823,469.80-1,235,204.70-811,028.20

Finding the Fourth Proportional to 823,469.80, 1,235,204.70 and 811,028.20

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Solution

The fourth proportional to 823,469.80, 1,235,204.70 and 811,028.20 is: 1,216,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,469.80 : 1,235,204.70 = 811,028.20 : x
  2. Step 2: Convert to fraction form
    823,469.80/1,235,204.70 = 811,028.20/x
  3. Step 3: Cross multiply
    823,469.80x = 1,235,204.70 × 811,028.20
  4. Step 4: Simplify right side
    823,469.80x = 1,001,785,844,472.54
  5. Step 5: Solve for x
    x = 1,001,785,844,472.54/823,469.80
  6. Step 6: Final answer
    x = 1,216,542.30

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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.