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Finding the Fourth Proportional to 715,436.20, 987,057.57 and 443,404.83

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Solution

The fourth proportional to 715,436.20, 987,057.57 and 443,404.83 is: 611,747.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,436.20 : 987,057.57 = 443,404.83 : x
  2. Step 2: Convert to fraction form
    715,436.20/987,057.57 = 443,404.83/x
  3. Step 3: Cross multiply
    715,436.20x = 987,057.57 × 443,404.83
  4. Step 4: Simplify right side
    715,436.20x = 437,666,098,143.22
  5. Step 5: Solve for x
    x = 437,666,098,143.22/715,436.20
  6. Step 6: Final answer
    x = 611,747.21

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