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Finding the Fourth Proportional to 464,616.63, 641,396.19 and 311,598.84

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Solution

The fourth proportional to 464,616.63, 641,396.19 and 311,598.84 is: 430,157.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,616.63 : 641,396.19 = 311,598.84 : x
  2. Step 2: Convert to fraction form
    464,616.63/641,396.19 = 311,598.84/x
  3. Step 3: Cross multiply
    464,616.63x = 641,396.19 × 311,598.84
  4. Step 4: Simplify right side
    464,616.63x = 199,858,308,784.42
  5. Step 5: Solve for x
    x = 199,858,308,784.42/464,616.63
  6. Step 6: Final answer
    x = 430,157.46

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