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Finding the Fourth Proportional to 707,286.84, 976,077.86 and 385,018.43

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Solution

The fourth proportional to 707,286.84, 976,077.86 and 385,018.43 is: 531,337.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,286.84 : 976,077.86 = 385,018.43 : x
  2. Step 2: Convert to fraction form
    707,286.84/976,077.86 = 385,018.43/x
  3. Step 3: Cross multiply
    707,286.84x = 976,077.86 × 385,018.43
  4. Step 4: Simplify right side
    707,286.84x = 375,807,958,409.48
  5. Step 5: Solve for x
    x = 375,807,958,409.48/707,286.84
  6. Step 6: Final answer
    x = 531,337.41

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