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Finding the Fourth Proportional to 460,024.80, 690,069.60 and 260,440.80

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Solution

The fourth proportional to 460,024.80, 690,069.60 and 260,440.80 is: 390,679.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,024.80 : 690,069.60 = 260,440.80 : x
  2. Step 2: Convert to fraction form
    460,024.80/690,069.60 = 260,440.80/x
  3. Step 3: Cross multiply
    460,024.80x = 690,069.60 × 260,440.80
  4. Step 4: Simplify right side
    460,024.80x = 179,722,278,679.68
  5. Step 5: Solve for x
    x = 179,722,278,679.68/460,024.80
  6. Step 6: Final answer
    x = 390,679.54

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