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Finding the Fourth Proportional to 500,819.92, 690,914.28 and 331,290.64

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Solution

The fourth proportional to 500,819.92, 690,914.28 and 331,290.64 is: 457,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,819.92 : 690,914.28 = 331,290.64 : x
  2. Step 2: Convert to fraction form
    500,819.92/690,914.28 = 331,290.64/x
  3. Step 3: Cross multiply
    500,819.92x = 690,914.28 × 331,290.64
  4. Step 4: Simplify right side
    500,819.92x = 228,893,434,006.34
  5. Step 5: Solve for x
    x = 228,893,434,006.34/500,819.92
  6. Step 6: Final answer
    x = 457,037.40

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