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Finding the Fourth Proportional to 781,169.82, 1,171,754.73 and 741,278.94

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Solution

The fourth proportional to 781,169.82, 1,171,754.73 and 741,278.94 is: 1,111,918.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,169.82 : 1,171,754.73 = 741,278.94 : x
  2. Step 2: Convert to fraction form
    781,169.82/1,171,754.73 = 741,278.94/x
  3. Step 3: Cross multiply
    781,169.82x = 1,171,754.73 × 741,278.94
  4. Step 4: Simplify right side
    781,169.82x = 868,597,104,194.39
  5. Step 5: Solve for x
    x = 868,597,104,194.39/781,169.82
  6. Step 6: Final answer
    x = 1,111,918.41

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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.