Home / 2,187,145.80-3,279,734.55-838,860.30

Finding the Fourth Proportional to 2,187,145.80, 3,279,734.55 and 838,860.30

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Solution

The fourth proportional to 2,187,145.80, 3,279,734.55 and 838,860.30 is: 1,257,912.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,145.80 : 3,279,734.55 = 838,860.30 : x
  2. Step 2: Convert to fraction form
    2,187,145.80/3,279,734.55 = 838,860.30/x
  3. Step 3: Cross multiply
    2,187,145.80x = 3,279,734.55 × 838,860.30
  4. Step 4: Simplify right side
    2,187,145.80x = 2,751,239,108,533.37
  5. Step 5: Solve for x
    x = 2,751,239,108,533.37/2,187,145.80
  6. Step 6: Final answer
    x = 1,257,912.99

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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.