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Finding the Fourth Proportional to 720,234.02, 993,896.25 and 397,937.18

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Solution

The fourth proportional to 720,234.02, 993,896.25 and 397,937.18 is: 549,138.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,234.02 : 993,896.25 = 397,937.18 : x
  2. Step 2: Convert to fraction form
    720,234.02/993,896.25 = 397,937.18/x
  3. Step 3: Cross multiply
    720,234.02x = 993,896.25 × 397,937.18
  4. Step 4: Simplify right side
    720,234.02x = 395,508,270,937.58
  5. Step 5: Solve for x
    x = 395,508,270,937.58/720,234.02
  6. Step 6: Final answer
    x = 549,138.56

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