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Finding the Fourth Proportional to 2,628,682.80, 3,944,773.80 and 1,491,442.80

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Solution

The fourth proportional to 2,628,682.80, 3,944,773.80 and 1,491,442.80 is: 2,238,156.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,682.80 : 3,944,773.80 = 1,491,442.80 : x
  2. Step 2: Convert to fraction form
    2,628,682.80/3,944,773.80 = 1,491,442.80/x
  3. Step 3: Cross multiply
    2,628,682.80x = 3,944,773.80 × 1,491,442.80
  4. Step 4: Simplify right side
    2,628,682.80x = 5,883,404,481,638.64
  5. Step 5: Solve for x
    x = 5,883,404,481,638.64/2,628,682.80
  6. Step 6: Final answer
    x = 2,238,156.88

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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.