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Finding the Fourth Proportional to 495,978.30, 684,431.01 and 269,623.80

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Solution

The fourth proportional to 495,978.30, 684,431.01 and 269,623.80 is: 372,070.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,978.30 : 684,431.01 = 269,623.80 : x
  2. Step 2: Convert to fraction form
    495,978.30/684,431.01 = 269,623.80/x
  3. Step 3: Cross multiply
    495,978.30x = 684,431.01 × 269,623.80
  4. Step 4: Simplify right side
    495,978.30x = 184,538,889,754.04
  5. Step 5: Solve for x
    x = 184,538,889,754.04/495,978.30
  6. Step 6: Final answer
    x = 372,070.49

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