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Finding the Fourth Proportional to 412.83, 569.70 and 288.36

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Solution

The fourth proportional to 412.83, 569.70 and 288.36 is: 397.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.83 : 569.70 = 288.36 : x
  2. Step 2: Convert to fraction form
    412.83/569.70 = 288.36/x
  3. Step 3: Cross multiply
    412.83x = 569.70 × 288.36
  4. Step 4: Simplify right side
    412.83x = 164,278.69
  5. Step 5: Solve for x
    x = 164,278.69/412.83
  6. Step 6: Final answer
    x = 397.93

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