Home / 1,318,896.40-1,978,307.52-420,392.02

Finding the Fourth Proportional to 1,318,896.40, 1,978,307.52 and 420,392.02

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Solution

The fourth proportional to 1,318,896.40, 1,978,307.52 and 420,392.02 is: 630,576.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,896.40 : 1,978,307.52 = 420,392.02 : x
  2. Step 2: Convert to fraction form
    1,318,896.40/1,978,307.52 = 420,392.02/x
  3. Step 3: Cross multiply
    1,318,896.40x = 1,978,307.52 × 420,392.02
  4. Step 4: Simplify right side
    1,318,896.40x = 831,664,694,513.99
  5. Step 5: Solve for x
    x = 831,664,694,513.99/1,318,896.40
  6. Step 6: Final answer
    x = 630,576.21

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