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Finding the Fourth Proportional to 509,955.40, 703,739.16 and 283,600.90

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Solution

The fourth proportional to 509,955.40, 703,739.16 and 283,600.90 is: 391,369.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,955.40 : 703,739.16 = 283,600.90 : x
  2. Step 2: Convert to fraction form
    509,955.40/703,739.16 = 283,600.90/x
  3. Step 3: Cross multiply
    509,955.40x = 703,739.16 × 283,600.90
  4. Step 4: Simplify right side
    509,955.40x = 199,581,059,141.24
  5. Step 5: Solve for x
    x = 199,581,059,141.24/509,955.40
  6. Step 6: Final answer
    x = 391,369.64

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