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Finding the Fourth Proportional to 613.79, 846.45 and 466.17

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Solution

The fourth proportional to 613.79, 846.45 and 466.17 is: 642.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.79 : 846.45 = 466.17 : x
  2. Step 2: Convert to fraction form
    613.79/846.45 = 466.17/x
  3. Step 3: Cross multiply
    613.79x = 846.45 × 466.17
  4. Step 4: Simplify right side
    613.79x = 394,587.85
  5. Step 5: Solve for x
    x = 394,587.85/613.79
  6. Step 6: Final answer
    x = 642.87

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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.