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Finding the Fourth Proportional to 495,517.80, 742,401.90 and 406,288.20

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Solution

The fourth proportional to 495,517.80, 742,401.90 and 406,288.20 is: 608,715.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,517.80 : 742,401.90 = 406,288.20 : x
  2. Step 2: Convert to fraction form
    495,517.80/742,401.90 = 406,288.20/x
  3. Step 3: Cross multiply
    495,517.80x = 742,401.90 × 406,288.20
  4. Step 4: Simplify right side
    495,517.80x = 301,629,131,627.58
  5. Step 5: Solve for x
    x = 301,629,131,627.58/495,517.80
  6. Step 6: Final answer
    x = 608,715.03

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