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Finding the Fourth Proportional to 652,096.80, 978,436.80 and 315,007.20

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Solution

The fourth proportional to 652,096.80, 978,436.80 and 315,007.20 is: 472,651.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,096.80 : 978,436.80 = 315,007.20 : x
  2. Step 2: Convert to fraction form
    652,096.80/978,436.80 = 315,007.20/x
  3. Step 3: Cross multiply
    652,096.80x = 978,436.80 × 315,007.20
  4. Step 4: Simplify right side
    652,096.80x = 308,214,636,744.96
  5. Step 5: Solve for x
    x = 308,214,636,744.96/652,096.80
  6. Step 6: Final answer
    x = 472,651.66

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