Home / 2,187,331.40-3,280,997.10-1,788,422.60

Finding the Fourth Proportional to 2,187,331.40, 3,280,997.10 and 1,788,422.60

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Solution

The fourth proportional to 2,187,331.40, 3,280,997.10 and 1,788,422.60 is: 2,682,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,331.40 : 3,280,997.10 = 1,788,422.60 : x
  2. Step 2: Convert to fraction form
    2,187,331.40/3,280,997.10 = 1,788,422.60/x
  3. Step 3: Cross multiply
    2,187,331.40x = 3,280,997.10 × 1,788,422.60
  4. Step 4: Simplify right side
    2,187,331.40x = 5,867,809,364,174.46
  5. Step 5: Solve for x
    x = 5,867,809,364,174.46/2,187,331.40
  6. Step 6: Final answer
    x = 2,682,633.90

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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.