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Finding the Fourth Proportional to 569.29, 785.62 and 320.61

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Solution

The fourth proportional to 569.29, 785.62 and 320.61 is: 442.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.29 : 785.62 = 320.61 : x
  2. Step 2: Convert to fraction form
    569.29/785.62 = 320.61/x
  3. Step 3: Cross multiply
    569.29x = 785.62 × 320.61
  4. Step 4: Simplify right side
    569.29x = 251,877.63
  5. Step 5: Solve for x
    x = 251,877.63/569.29
  6. Step 6: Final answer
    x = 442.44

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