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Finding the Fourth Proportional to 489,023.20, 733,534.80 and 447,032.80

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Solution

The fourth proportional to 489,023.20, 733,534.80 and 447,032.80 is: 670,549.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,023.20 : 733,534.80 = 447,032.80 : x
  2. Step 2: Convert to fraction form
    489,023.20/733,534.80 = 447,032.80/x
  3. Step 3: Cross multiply
    489,023.20x = 733,534.80 × 447,032.80
  4. Step 4: Simplify right side
    489,023.20x = 327,914,115,541.44
  5. Step 5: Solve for x
    x = 327,914,115,541.44/489,023.20
  6. Step 6: Final answer
    x = 670,549.20

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