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Finding the Fourth Proportional to 715,792.12, 987,811.97 and 393,510.33

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Solution

The fourth proportional to 715,792.12, 987,811.97 and 393,510.33 is: 543,054.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,792.12 : 987,811.97 = 393,510.33 : x
  2. Step 2: Convert to fraction form
    715,792.12/987,811.97 = 393,510.33/x
  3. Step 3: Cross multiply
    715,792.12x = 987,811.97 × 393,510.33
  4. Step 4: Simplify right side
    715,792.12x = 388,714,217,745.96
  5. Step 5: Solve for x
    x = 388,714,217,745.96/715,792.12
  6. Step 6: Final answer
    x = 543,054.62

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