Home / 1,318,799.40-1,978,177.62-420,229.02

Finding the Fourth Proportional to 1,318,799.40, 1,978,177.62 and 420,229.02

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Solution

The fourth proportional to 1,318,799.40, 1,978,177.62 and 420,229.02 is: 630,336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,799.40 : 1,978,177.62 = 420,229.02 : x
  2. Step 2: Convert to fraction form
    1,318,799.40/1,978,177.62 = 420,229.02/x
  3. Step 3: Cross multiply
    1,318,799.40x = 1,978,177.62 × 420,229.02
  4. Step 4: Simplify right side
    1,318,799.40x = 831,287,642,638.53
  5. Step 5: Solve for x
    x = 831,287,642,638.53/1,318,799.40
  6. Step 6: Final answer
    x = 630,336.69

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