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Finding the Fourth Proportional to 725,059.78, 1,000,554.68 and 402,790.14

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Solution

The fourth proportional to 725,059.78, 1,000,554.68 and 402,790.14 is: 555,834.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,059.78 : 1,000,554.68 = 402,790.14 : x
  2. Step 2: Convert to fraction form
    725,059.78/1,000,554.68 = 402,790.14/x
  3. Step 3: Cross multiply
    725,059.78x = 1,000,554.68 × 402,790.14
  4. Step 4: Simplify right side
    725,059.78x = 403,013,560,641.83
  5. Step 5: Solve for x
    x = 403,013,560,641.83/725,059.78
  6. Step 6: Final answer
    x = 555,834.94

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