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Finding the Fourth Proportional to 561,822.62, 775,318.46 and 307,173.80

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Solution

The fourth proportional to 561,822.62, 775,318.46 and 307,173.80 is: 423,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,822.62 : 775,318.46 = 307,173.80 : x
  2. Step 2: Convert to fraction form
    561,822.62/775,318.46 = 307,173.80/x
  3. Step 3: Cross multiply
    561,822.62x = 775,318.46 × 307,173.80
  4. Step 4: Simplify right side
    561,822.62x = 238,157,517,970.78
  5. Step 5: Solve for x
    x = 238,157,517,970.78/561,822.62
  6. Step 6: Final answer
    x = 423,901.62

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