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Finding the Fourth Proportional to 528,958.41, 729,971.30 and 299,509.64

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Solution

The fourth proportional to 528,958.41, 729,971.30 and 299,509.64 is: 413,328.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,958.41 : 729,971.30 = 299,509.64 : x
  2. Step 2: Convert to fraction form
    528,958.41/729,971.30 = 299,509.64/x
  3. Step 3: Cross multiply
    528,958.41x = 729,971.30 × 299,509.64
  4. Step 4: Simplify right side
    528,958.41x = 218,633,441,273.33
  5. Step 5: Solve for x
    x = 218,633,441,273.33/528,958.41
  6. Step 6: Final answer
    x = 413,328.23

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