Home / 2,643,215.78-3,647,566.92-1,555,551.44

Finding the Fourth Proportional to 2,643,215.78, 3,647,566.92 and 1,555,551.44

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Solution

The fourth proportional to 2,643,215.78, 3,647,566.92 and 1,555,551.44 is: 2,146,619.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643,215.78 : 3,647,566.92 = 1,555,551.44 : x
  2. Step 2: Convert to fraction form
    2,643,215.78/3,647,566.92 = 1,555,551.44/x
  3. Step 3: Cross multiply
    2,643,215.78x = 3,647,566.92 × 1,555,551.44
  4. Step 4: Simplify right side
    2,643,215.78x = 5,673,977,974,902.36
  5. Step 5: Solve for x
    x = 5,673,977,974,902.36/2,643,215.78
  6. Step 6: Final answer
    x = 2,146,619.29

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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.