Home / 1,102,816.80-1,655,780.40-682,912.80

Finding the Fourth Proportional to 1,102,816.80, 1,655,780.40 and 682,912.80

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Solution

The fourth proportional to 1,102,816.80, 1,655,780.40 and 682,912.80 is: 1,025,332.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,816.80 : 1,655,780.40 = 682,912.80 : x
  2. Step 2: Convert to fraction form
    1,102,816.80/1,655,780.40 = 682,912.80/x
  3. Step 3: Cross multiply
    1,102,816.80x = 1,655,780.40 × 682,912.80
  4. Step 4: Simplify right side
    1,102,816.80x = 1,130,753,629,149.12
  5. Step 5: Solve for x
    x = 1,130,753,629,149.12/1,102,816.80
  6. Step 6: Final answer
    x = 1,025,332.25

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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.