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Finding the Fourth Proportional to 709,896.42, 979,670.70 and 387,619.29

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Solution

The fourth proportional to 709,896.42, 979,670.70 and 387,619.29 is: 534,922.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,896.42 : 979,670.70 = 387,619.29 : x
  2. Step 2: Convert to fraction form
    709,896.42/979,670.70 = 387,619.29/x
  3. Step 3: Cross multiply
    709,896.42x = 979,670.70 × 387,619.29
  4. Step 4: Simplify right side
    709,896.42x = 379,739,261,167.80
  5. Step 5: Solve for x
    x = 379,739,261,167.80/709,896.42
  6. Step 6: Final answer
    x = 534,922.07

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