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Finding the Fourth Proportional to 456,069.40, 684,104.10 and 449,848.60

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Solution

The fourth proportional to 456,069.40, 684,104.10 and 449,848.60 is: 674,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,069.40 : 684,104.10 = 449,848.60 : x
  2. Step 2: Convert to fraction form
    456,069.40/684,104.10 = 449,848.60/x
  3. Step 3: Cross multiply
    456,069.40x = 684,104.10 × 449,848.60
  4. Step 4: Simplify right side
    456,069.40x = 307,743,271,639.26
  5. Step 5: Solve for x
    x = 307,743,271,639.26/456,069.40
  6. Step 6: Final answer
    x = 674,772.90

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