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Finding the Fourth Proportional to 516,226.48, 712,315.56 and 289,828.24

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Solution

The fourth proportional to 516,226.48, 712,315.56 and 289,828.24 is: 399,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,226.48 : 712,315.56 = 289,828.24 : x
  2. Step 2: Convert to fraction form
    516,226.48/712,315.56 = 289,828.24/x
  3. Step 3: Cross multiply
    516,226.48x = 712,315.56 × 289,828.24
  4. Step 4: Simplify right side
    516,226.48x = 206,449,165,079.41
  5. Step 5: Solve for x
    x = 206,449,165,079.41/516,226.48
  6. Step 6: Final answer
    x = 399,919.75

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