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Finding the Fourth Proportional to 944.89, 1,304.73 and 613.89

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Solution

The fourth proportional to 944.89, 1,304.73 and 613.89 is: 847.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.89 : 1,304.73 = 613.89 : x
  2. Step 2: Convert to fraction form
    944.89/1,304.73 = 613.89/x
  3. Step 3: Cross multiply
    944.89x = 1,304.73 × 613.89
  4. Step 4: Simplify right side
    944.89x = 800,951.11
  5. Step 5: Solve for x
    x = 800,951.11/944.89
  6. Step 6: Final answer
    x = 847.67

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Double scale
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1.5x scale

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.