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Finding the Fourth Proportional to 520,048.60, 780,015.30 and 146,109.40

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Solution

The fourth proportional to 520,048.60, 780,015.30 and 146,109.40 is: 219,147.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,048.60 : 780,015.30 = 146,109.40 : x
  2. Step 2: Convert to fraction form
    520,048.60/780,015.30 = 146,109.40/x
  3. Step 3: Cross multiply
    520,048.60x = 780,015.30 × 146,109.40
  4. Step 4: Simplify right side
    520,048.60x = 113,967,567,473.82
  5. Step 5: Solve for x
    x = 113,967,567,473.82/520,048.60
  6. Step 6: Final answer
    x = 219,147.92

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