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Finding the Fourth Proportional to 422,915.26, 634,466.32 and 209,799.10

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Solution

The fourth proportional to 422,915.26, 634,466.32 and 209,799.10 is: 314,744.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,915.26 : 634,466.32 = 209,799.10 : x
  2. Step 2: Convert to fraction form
    422,915.26/634,466.32 = 209,799.10/x
  3. Step 3: Cross multiply
    422,915.26x = 634,466.32 × 209,799.10
  4. Step 4: Simplify right side
    422,915.26x = 133,110,462,292.68
  5. Step 5: Solve for x
    x = 133,110,462,292.68/422,915.26
  6. Step 6: Final answer
    x = 314,744.99

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