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Finding the Fourth Proportional to 476,639.40, 657,766.26 and 261,782.04

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Solution

The fourth proportional to 476,639.40, 657,766.26 and 261,782.04 is: 361,261.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,639.40 : 657,766.26 = 261,782.04 : x
  2. Step 2: Convert to fraction form
    476,639.40/657,766.26 = 261,782.04/x
  3. Step 3: Cross multiply
    476,639.40x = 657,766.26 × 261,782.04
  4. Step 4: Simplify right side
    476,639.40x = 172,191,393,385.97
  5. Step 5: Solve for x
    x = 172,191,393,385.97/476,639.40
  6. Step 6: Final answer
    x = 361,261.35

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