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Finding the Fourth Proportional to 543,353.80, 815,645.10 and 321,862.60

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Solution

The fourth proportional to 543,353.80, 815,645.10 and 321,862.60 is: 483,157.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,353.80 : 815,645.10 = 321,862.60 : x
  2. Step 2: Convert to fraction form
    543,353.80/815,645.10 = 321,862.60/x
  3. Step 3: Cross multiply
    543,353.80x = 815,645.10 × 321,862.60
  4. Step 4: Simplify right side
    543,353.80x = 262,525,652,563.26
  5. Step 5: Solve for x
    x = 262,525,652,563.26/543,353.80
  6. Step 6: Final answer
    x = 483,157.85

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