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Finding the Fourth Proportional to 1,318,388.88, 1,818,708.88 and 834,138.48

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Solution

The fourth proportional to 1,318,388.88, 1,818,708.88 and 834,138.48 is: 1,150,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,388.88 : 1,818,708.88 = 834,138.48 : x
  2. Step 2: Convert to fraction form
    1,318,388.88/1,818,708.88 = 834,138.48/x
  3. Step 3: Cross multiply
    1,318,388.88x = 1,818,708.88 × 834,138.48
  4. Step 4: Simplify right side
    1,318,388.88x = 1,517,055,060,725.70
  5. Step 5: Solve for x
    x = 1,517,055,060,725.70/1,318,388.88
  6. Step 6: Final answer
    x = 1,150,688.60

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