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Finding the Fourth Proportional to 402,571.20, 603,929.70 and 202,387.80

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Solution

The fourth proportional to 402,571.20, 603,929.70 and 202,387.80 is: 303,618.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,571.20 : 603,929.70 = 202,387.80 : x
  2. Step 2: Convert to fraction form
    402,571.20/603,929.70 = 202,387.80/x
  3. Step 3: Cross multiply
    402,571.20x = 603,929.70 × 202,387.80
  4. Step 4: Simplify right side
    402,571.20x = 122,228,003,337.66
  5. Step 5: Solve for x
    x = 122,228,003,337.66/402,571.20
  6. Step 6: Final answer
    x = 303,618.35

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