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Finding the Fourth Proportional to 614.49, 853.82 and 606.66

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Solution

The fourth proportional to 614.49, 853.82 and 606.66 is: 842.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.49 : 853.82 = 606.66 : x
  2. Step 2: Convert to fraction form
    614.49/853.82 = 606.66/x
  3. Step 3: Cross multiply
    614.49x = 853.82 × 606.66
  4. Step 4: Simplify right side
    614.49x = 517,975.41
  5. Step 5: Solve for x
    x = 517,975.41/614.49
  6. Step 6: Final answer
    x = 842.94

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.