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Finding the Fourth Proportional to 707,285.40, 976,079.70 and 384,979.92

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Solution

The fourth proportional to 707,285.40, 976,079.70 and 384,979.92 is: 531,286.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,285.40 : 976,079.70 = 384,979.92 : x
  2. Step 2: Convert to fraction form
    707,285.40/976,079.70 = 384,979.92/x
  3. Step 3: Cross multiply
    707,285.40x = 976,079.70 × 384,979.92
  4. Step 4: Simplify right side
    707,285.40x = 375,771,084,819.62
  5. Step 5: Solve for x
    x = 375,771,084,819.62/707,285.40
  6. Step 6: Final answer
    x = 531,286.36

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