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Finding the Fourth Proportional to 492,805.20, 739,207.80 and 427,851.30

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Solution

The fourth proportional to 492,805.20, 739,207.80 and 427,851.30 is: 641,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,805.20 : 739,207.80 = 427,851.30 : x
  2. Step 2: Convert to fraction form
    492,805.20/739,207.80 = 427,851.30/x
  3. Step 3: Cross multiply
    492,805.20x = 739,207.80 × 427,851.30
  4. Step 4: Simplify right side
    492,805.20x = 316,271,018,200.14
  5. Step 5: Solve for x
    x = 316,271,018,200.14/492,805.20
  6. Step 6: Final answer
    x = 641,776.95

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