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Finding the Fourth Proportional to 2,669,894.67, 4,005,028.80 and 1,321,695.30

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Solution

The fourth proportional to 2,669,894.67, 4,005,028.80 and 1,321,695.30 is: 1,982,635.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669,894.67 : 4,005,028.80 = 1,321,695.30 : x
  2. Step 2: Convert to fraction form
    2,669,894.67/4,005,028.80 = 1,321,695.30/x
  3. Step 3: Cross multiply
    2,669,894.67x = 4,005,028.80 × 1,321,695.30
  4. Step 4: Simplify right side
    2,669,894.67x = 5,293,427,741,324.64
  5. Step 5: Solve for x
    x = 5,293,427,741,324.64/2,669,894.67
  6. Step 6: Final answer
    x = 1,982,635.42

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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.