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Finding the Fourth Proportional to 715,373.48, 987,239.64 and 393,095.14

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Solution

The fourth proportional to 715,373.48, 987,239.64 and 393,095.14 is: 542,484.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,373.48 : 987,239.64 = 393,095.14 : x
  2. Step 2: Convert to fraction form
    715,373.48/987,239.64 = 393,095.14/x
  3. Step 3: Cross multiply
    715,373.48x = 987,239.64 × 393,095.14
  4. Step 4: Simplify right side
    715,373.48x = 388,079,104,499.35
  5. Step 5: Solve for x
    x = 388,079,104,499.35/715,373.48
  6. Step 6: Final answer
    x = 542,484.61

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