Home / 1,442,078.11-2,161,225-1,061,216.11

Finding the Fourth Proportional to 1,442,078.11, 2,161,225 and 1,061,216.11

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Solution

The fourth proportional to 1,442,078.11, 2,161,225 and 1,061,216.11 is: 1,590,431.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,078.11 : 2,161,225 = 1,061,216.11 : x
  2. Step 2: Convert to fraction form
    1,442,078.11/2,161,225 = 1,061,216.11/x
  3. Step 3: Cross multiply
    1,442,078.11x = 2,161,225 × 1,061,216.11
  4. Step 4: Simplify right side
    1,442,078.11x = 2,293,526,787,334.75
  5. Step 5: Solve for x
    x = 2,293,526,787,334.75/1,442,078.11
  6. Step 6: Final answer
    x = 1,590,431.73

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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.