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Finding the Fourth Proportional to 414,898.40, 620,792.40 and 274,930.40

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Solution

The fourth proportional to 414,898.40, 620,792.40 and 274,930.40 is: 411,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,898.40 : 620,792.40 = 274,930.40 : x
  2. Step 2: Convert to fraction form
    414,898.40/620,792.40 = 274,930.40/x
  3. Step 3: Cross multiply
    414,898.40x = 620,792.40 × 274,930.40
  4. Step 4: Simplify right side
    414,898.40x = 170,674,702,848.96
  5. Step 5: Solve for x
    x = 170,674,702,848.96/414,898.40
  6. Step 6: Final answer
    x = 411,365.05

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