Home / 1,215,464.25-1,823,004.68-764,805.56

Finding the Fourth Proportional to 1,215,464.25, 1,823,004.68 and 764,805.56

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Solution

The fourth proportional to 1,215,464.25, 1,823,004.68 and 764,805.56 is: 1,147,087.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,464.25 : 1,823,004.68 = 764,805.56 : x
  2. Step 2: Convert to fraction form
    1,215,464.25/1,823,004.68 = 764,805.56/x
  3. Step 3: Cross multiply
    1,215,464.25x = 1,823,004.68 × 764,805.56
  4. Step 4: Simplify right side
    1,215,464.25x = 1,394,244,116,787.40
  5. Step 5: Solve for x
    x = 1,394,244,116,787.40/1,215,464.25
  6. Step 6: Final answer
    x = 1,147,087.72

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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.