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Finding the Fourth Proportional to 569.62, 854.70 and 309.61

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Solution

The fourth proportional to 569.62, 854.70 and 309.61 is: 464.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.62 : 854.70 = 309.61 : x
  2. Step 2: Convert to fraction form
    569.62/854.70 = 309.61/x
  3. Step 3: Cross multiply
    569.62x = 854.70 × 309.61
  4. Step 4: Simplify right side
    569.62x = 264,625.32
  5. Step 5: Solve for x
    x = 264,625.32/569.62
  6. Step 6: Final answer
    x = 464.56

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