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Finding the Fourth Proportional to 569.64, 785.64 and 383

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Solution

The fourth proportional to 569.64, 785.64 and 383 is: 528.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.64 : 785.64 = 383 : x
  2. Step 2: Convert to fraction form
    569.64/785.64 = 383/x
  3. Step 3: Cross multiply
    569.64x = 785.64 × 383
  4. Step 4: Simplify right side
    569.64x = 300,900.12
  5. Step 5: Solve for x
    x = 300,900.12/569.64
  6. Step 6: Final answer
    x = 528.23

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