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Finding the Fourth Proportional to 491,831.44, 678,762.14 and 274,054.57

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Solution

The fourth proportional to 491,831.44, 678,762.14 and 274,054.57 is: 378,214.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,831.44 : 678,762.14 = 274,054.57 : x
  2. Step 2: Convert to fraction form
    491,831.44/678,762.14 = 274,054.57/x
  3. Step 3: Cross multiply
    491,831.44x = 678,762.14 × 274,054.57
  4. Step 4: Simplify right side
    491,831.44x = 186,017,861,645.90
  5. Step 5: Solve for x
    x = 186,017,861,645.90/491,831.44
  6. Step 6: Final answer
    x = 378,214.67

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