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Finding the Fourth Proportional to 525,913.20, 788,869.80 and 259,714.80

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Solution

The fourth proportional to 525,913.20, 788,869.80 and 259,714.80 is: 389,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,913.20 : 788,869.80 = 259,714.80 : x
  2. Step 2: Convert to fraction form
    525,913.20/788,869.80 = 259,714.80/x
  3. Step 3: Cross multiply
    525,913.20x = 788,869.80 × 259,714.80
  4. Step 4: Simplify right side
    525,913.20x = 204,881,162,333.04
  5. Step 5: Solve for x
    x = 204,881,162,333.04/525,913.20
  6. Step 6: Final answer
    x = 389,572.20

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