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Finding the Fourth Proportional to 464,276.20, 640,429.02 and 291,921.01

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Solution

The fourth proportional to 464,276.20, 640,429.02 and 291,921.01 is: 402,679.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,276.20 : 640,429.02 = 291,921.01 : x
  2. Step 2: Convert to fraction form
    464,276.20/640,429.02 = 291,921.01/x
  3. Step 3: Cross multiply
    464,276.20x = 640,429.02 × 291,921.01
  4. Step 4: Simplify right side
    464,276.20x = 186,954,686,351.71
  5. Step 5: Solve for x
    x = 186,954,686,351.71/464,276.20
  6. Step 6: Final answer
    x = 402,679.88

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