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Finding the Fourth Proportional to 392,605.72, 589,201.70 and 291,636.92

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Solution

The fourth proportional to 392,605.72, 589,201.70 and 291,636.92 is: 437,673.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,605.72 : 589,201.70 = 291,636.92 : x
  2. Step 2: Convert to fraction form
    392,605.72/589,201.70 = 291,636.92/x
  3. Step 3: Cross multiply
    392,605.72x = 589,201.70 × 291,636.92
  4. Step 4: Simplify right side
    392,605.72x = 171,832,969,061.58
  5. Step 5: Solve for x
    x = 171,832,969,061.58/392,605.72
  6. Step 6: Final answer
    x = 437,673.12

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