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Finding the Fourth Proportional to 408,405.80, 612,608.70 and 295,556.60

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Solution

The fourth proportional to 408,405.80, 612,608.70 and 295,556.60 is: 443,334.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,405.80 : 612,608.70 = 295,556.60 : x
  2. Step 2: Convert to fraction form
    408,405.80/612,608.70 = 295,556.60/x
  3. Step 3: Cross multiply
    408,405.80x = 612,608.70 × 295,556.60
  4. Step 4: Simplify right side
    408,405.80x = 181,060,544,502.42
  5. Step 5: Solve for x
    x = 181,060,544,502.42/408,405.80
  6. Step 6: Final answer
    x = 443,334.90

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