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Finding the Fourth Proportional to 464,588.11, 641,356.86 and 311,570.56

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Solution

The fourth proportional to 464,588.11, 641,356.86 and 311,570.56 is: 430,118.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,588.11 : 641,356.86 = 311,570.56 : x
  2. Step 2: Convert to fraction form
    464,588.11/641,356.86 = 311,570.56/x
  3. Step 3: Cross multiply
    464,588.11x = 641,356.86 × 311,570.56
  4. Step 4: Simplify right side
    464,588.11x = 199,827,916,030.04
  5. Step 5: Solve for x
    x = 199,827,916,030.04/464,588.11
  6. Step 6: Final answer
    x = 430,118.45

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