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Finding the Fourth Proportional to 492,853.30, 739,107.15 and 256,117.30

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Solution

The fourth proportional to 492,853.30, 739,107.15 and 256,117.30 is: 384,086.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,853.30 : 739,107.15 = 256,117.30 : x
  2. Step 2: Convert to fraction form
    492,853.30/739,107.15 = 256,117.30/x
  3. Step 3: Cross multiply
    492,853.30x = 739,107.15 × 256,117.30
  4. Step 4: Simplify right side
    492,853.30x = 189,298,127,668.70
  5. Step 5: Solve for x
    x = 189,298,127,668.70/492,853.30
  6. Step 6: Final answer
    x = 384,086.15

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