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Finding the Fourth Proportional to 613.67, 920.52 and 441.11

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Solution

The fourth proportional to 613.67, 920.52 and 441.11 is: 661.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.67 : 920.52 = 441.11 : x
  2. Step 2: Convert to fraction form
    613.67/920.52 = 441.11/x
  3. Step 3: Cross multiply
    613.67x = 920.52 × 441.11
  4. Step 4: Simplify right side
    613.67x = 406,045.97
  5. Step 5: Solve for x
    x = 406,045.97/613.67
  6. Step 6: Final answer
    x = 661.67

Related Problems

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.