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Finding the Fourth Proportional to 612.41, 844.57 and 547.61

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Solution

The fourth proportional to 612.41, 844.57 and 547.61 is: 755.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.41 : 844.57 = 547.61 : x
  2. Step 2: Convert to fraction form
    612.41/844.57 = 547.61/x
  3. Step 3: Cross multiply
    612.41x = 844.57 × 547.61
  4. Step 4: Simplify right side
    612.41x = 462,494.98
  5. Step 5: Solve for x
    x = 462,494.98/612.41
  6. Step 6: Final answer
    x = 755.20

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Why These Related Problems?

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