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Finding the Fourth Proportional to 466,638.80, 699,439.80 and 256,427.60

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Solution

The fourth proportional to 466,638.80, 699,439.80 and 256,427.60 is: 384,356.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,638.80 : 699,439.80 = 256,427.60 : x
  2. Step 2: Convert to fraction form
    466,638.80/699,439.80 = 256,427.60/x
  3. Step 3: Cross multiply
    466,638.80x = 699,439.80 × 256,427.60
  4. Step 4: Simplify right side
    466,638.80x = 179,355,669,258.48
  5. Step 5: Solve for x
    x = 179,355,669,258.48/466,638.80
  6. Step 6: Final answer
    x = 384,356.53

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