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Finding the Fourth Proportional to 820,331.65, 1,228,726.01 and 800,254.99

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Solution

The fourth proportional to 820,331.65, 1,228,726.01 and 800,254.99 is: 1,198,654.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,331.65 : 1,228,726.01 = 800,254.99 : x
  2. Step 2: Convert to fraction form
    820,331.65/1,228,726.01 = 800,254.99/x
  3. Step 3: Cross multiply
    820,331.65x = 1,228,726.01 × 800,254.99
  4. Step 4: Simplify right side
    820,331.65x = 983,294,119,880.40
  5. Step 5: Solve for x
    x = 983,294,119,880.40/820,331.65
  6. Step 6: Final answer
    x = 1,198,654.37

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