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Finding the Fourth Proportional to 408,048.70, 611,475.45 and 365,928.70

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Solution

The fourth proportional to 408,048.70, 611,475.45 and 365,928.70 is: 548,357.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,048.70 : 611,475.45 = 365,928.70 : x
  2. Step 2: Convert to fraction form
    408,048.70/611,475.45 = 365,928.70/x
  3. Step 3: Cross multiply
    408,048.70x = 611,475.45 × 365,928.70
  4. Step 4: Simplify right side
    408,048.70x = 223,756,416,500.42
  5. Step 5: Solve for x
    x = 223,756,416,500.42/408,048.70
  6. Step 6: Final answer
    x = 548,357.14

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