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Finding the Fourth Proportional to 425,715.33, 637,850.37 and 256,880.91

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Solution

The fourth proportional to 425,715.33, 637,850.37 and 256,880.91 is: 384,885.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,715.33 : 637,850.37 = 256,880.91 : x
  2. Step 2: Convert to fraction form
    425,715.33/637,850.37 = 256,880.91/x
  3. Step 3: Cross multiply
    425,715.33x = 637,850.37 × 256,880.91
  4. Step 4: Simplify right side
    425,715.33x = 163,851,583,489.44
  5. Step 5: Solve for x
    x = 163,851,583,489.44/425,715.33
  6. Step 6: Final answer
    x = 384,885.33

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