Home / 1,682,057.80-2,321,202.78-918,124.12

Finding the Fourth Proportional to 1,682,057.80, 2,321,202.78 and 918,124.12

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Solution

The fourth proportional to 1,682,057.80, 2,321,202.78 and 918,124.12 is: 1,266,991.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682,057.80 : 2,321,202.78 = 918,124.12 : x
  2. Step 2: Convert to fraction form
    1,682,057.80/2,321,202.78 = 918,124.12/x
  3. Step 3: Cross multiply
    1,682,057.80x = 2,321,202.78 × 918,124.12
  4. Step 4: Simplify right side
    1,682,057.80x = 2,131,152,259,729.05
  5. Step 5: Solve for x
    x = 2,131,152,259,729.05/1,682,057.80
  6. Step 6: Final answer
    x = 1,266,991.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.