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Finding the Fourth Proportional to 413,699.20, 620,548.80 and 147,468.40

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Solution

The fourth proportional to 413,699.20, 620,548.80 and 147,468.40 is: 221,202.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,699.20 : 620,548.80 = 147,468.40 : x
  2. Step 2: Convert to fraction form
    413,699.20/620,548.80 = 147,468.40/x
  3. Step 3: Cross multiply
    413,699.20x = 620,548.80 × 147,468.40
  4. Step 4: Simplify right side
    413,699.20x = 91,511,338,657.92
  5. Step 5: Solve for x
    x = 91,511,338,657.92/413,699.20
  6. Step 6: Final answer
    x = 221,202.60

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