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Finding the Fourth Proportional to 676.72, 934.28 and 444.25

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Solution

The fourth proportional to 676.72, 934.28 and 444.25 is: 613.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.72 : 934.28 = 444.25 : x
  2. Step 2: Convert to fraction form
    676.72/934.28 = 444.25/x
  3. Step 3: Cross multiply
    676.72x = 934.28 × 444.25
  4. Step 4: Simplify right side
    676.72x = 415,053.89
  5. Step 5: Solve for x
    x = 415,053.89/676.72
  6. Step 6: Final answer
    x = 613.33

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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.