Home / 1,247,286.70-1,872,023.55-741,214.90

Finding the Fourth Proportional to 1,247,286.70, 1,872,023.55 and 741,214.90

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Solution

The fourth proportional to 1,247,286.70, 1,872,023.55 and 741,214.90 is: 1,112,472.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,286.70 : 1,872,023.55 = 741,214.90 : x
  2. Step 2: Convert to fraction form
    1,247,286.70/1,872,023.55 = 741,214.90/x
  3. Step 3: Cross multiply
    1,247,286.70x = 1,872,023.55 × 741,214.90
  4. Step 4: Simplify right side
    1,247,286.70x = 1,387,571,748,410.90
  5. Step 5: Solve for x
    x = 1,387,571,748,410.90/1,247,286.70
  6. Step 6: Final answer
    x = 1,112,472.18

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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.