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Finding the Fourth Proportional to 613.18, 844.40 and 524.33

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Solution

The fourth proportional to 613.18, 844.40 and 524.33 is: 722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.18 : 844.40 = 524.33 : x
  2. Step 2: Convert to fraction form
    613.18/844.40 = 524.33/x
  3. Step 3: Cross multiply
    613.18x = 844.40 × 524.33
  4. Step 4: Simplify right side
    613.18x = 442,747.67
  5. Step 5: Solve for x
    x = 442,747.67/613.18
  6. Step 6: Final answer
    x = 722.05

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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.