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Finding the Fourth Proportional to 400,955.58, 553,314.02 and 217,190.69

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Solution

The fourth proportional to 400,955.58, 553,314.02 and 217,190.69 is: 299,720.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,955.58 : 553,314.02 = 217,190.69 : x
  2. Step 2: Convert to fraction form
    400,955.58/553,314.02 = 217,190.69/x
  3. Step 3: Cross multiply
    400,955.58x = 553,314.02 × 217,190.69
  4. Step 4: Simplify right side
    400,955.58x = 120,174,650,831.20
  5. Step 5: Solve for x
    x = 120,174,650,831.20/400,955.58
  6. Step 6: Final answer
    x = 299,720.61

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