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Finding the Fourth Proportional to 612.27, 845.53 and 523.22

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Solution

The fourth proportional to 612.27, 845.53 and 523.22 is: 722.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.27 : 845.53 = 523.22 : x
  2. Step 2: Convert to fraction form
    612.27/845.53 = 523.22/x
  3. Step 3: Cross multiply
    612.27x = 845.53 × 523.22
  4. Step 4: Simplify right side
    612.27x = 442,397.70
  5. Step 5: Solve for x
    x = 442,397.70/612.27
  6. Step 6: Final answer
    x = 722.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.