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Finding the Fourth Proportional to 421,972.40, 633,250.20 and 303,744.80

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Solution

The fourth proportional to 421,972.40, 633,250.20 and 303,744.80 is: 455,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,972.40 : 633,250.20 = 303,744.80 : x
  2. Step 2: Convert to fraction form
    421,972.40/633,250.20 = 303,744.80/x
  3. Step 3: Cross multiply
    421,972.40x = 633,250.20 × 303,744.80
  4. Step 4: Simplify right side
    421,972.40x = 192,346,455,348.96
  5. Step 5: Solve for x
    x = 192,346,455,348.96/421,972.40
  6. Step 6: Final answer
    x = 455,827.10

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