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Finding the Fourth Proportional to 2,612,978.40, 3,918,456.72 and 1,015,331.16

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Solution

The fourth proportional to 2,612,978.40, 3,918,456.72 and 1,015,331.16 is: 1,522,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612,978.40 : 3,918,456.72 = 1,015,331.16 : x
  2. Step 2: Convert to fraction form
    2,612,978.40/3,918,456.72 = 1,015,331.16/x
  3. Step 3: Cross multiply
    2,612,978.40x = 3,918,456.72 × 1,015,331.16
  4. Step 4: Simplify right side
    2,612,978.40x = 3,978,531,206,927.40
  5. Step 5: Solve for x
    x = 3,978,531,206,927.40/2,612,978.40
  6. Step 6: Final answer
    x = 1,522,603.94

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