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Finding the Fourth Proportional to 571,428.13, 857,309.47 and 255,814.69

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Solution

The fourth proportional to 571,428.13, 857,309.47 and 255,814.69 is: 383,796.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,428.13 : 857,309.47 = 255,814.69 : x
  2. Step 2: Convert to fraction form
    571,428.13/857,309.47 = 255,814.69/x
  3. Step 3: Cross multiply
    571,428.13x = 857,309.47 × 255,814.69
  4. Step 4: Simplify right side
    571,428.13x = 219,312,351,376.03
  5. Step 5: Solve for x
    x = 219,312,351,376.03/571,428.13
  6. Step 6: Final answer
    x = 383,796.91

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