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Finding the Fourth Proportional to 525,910.20, 788,865.30 and 259,711.80

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Solution

The fourth proportional to 525,910.20, 788,865.30 and 259,711.80 is: 389,567.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,910.20 : 788,865.30 = 259,711.80 : x
  2. Step 2: Convert to fraction form
    525,910.20/788,865.30 = 259,711.80/x
  3. Step 3: Cross multiply
    525,910.20x = 788,865.30 × 259,711.80
  4. Step 4: Simplify right side
    525,910.20x = 204,877,627,020.54
  5. Step 5: Solve for x
    x = 204,877,627,020.54/525,910.20
  6. Step 6: Final answer
    x = 389,567.70

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