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Finding the Fourth Proportional to 571,005.20, 856,507.80 and 238,581.20

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Solution

The fourth proportional to 571,005.20, 856,507.80 and 238,581.20 is: 357,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,005.20 : 856,507.80 = 238,581.20 : x
  2. Step 2: Convert to fraction form
    571,005.20/856,507.80 = 238,581.20/x
  3. Step 3: Cross multiply
    571,005.20x = 856,507.80 × 238,581.20
  4. Step 4: Simplify right side
    571,005.20x = 204,346,658,733.36
  5. Step 5: Solve for x
    x = 204,346,658,733.36/571,005.20
  6. Step 6: Final answer
    x = 357,871.80

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