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Finding the Fourth Proportional to 719,362.60, 992,720.56 and 397,072.88

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Solution

The fourth proportional to 719,362.60, 992,720.56 and 397,072.88 is: 547,960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,362.60 : 992,720.56 = 397,072.88 : x
  2. Step 2: Convert to fraction form
    719,362.60/992,720.56 = 397,072.88/x
  3. Step 3: Cross multiply
    719,362.60x = 992,720.56 × 397,072.88
  4. Step 4: Simplify right side
    719,362.60x = 394,182,411,794.41
  5. Step 5: Solve for x
    x = 394,182,411,794.41/719,362.60
  6. Step 6: Final answer
    x = 547,960.67

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