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Finding the Fourth Proportional to 676.26, 932.67 and 427.32

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Solution

The fourth proportional to 676.26, 932.67 and 427.32 is: 589.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.26 : 932.67 = 427.32 : x
  2. Step 2: Convert to fraction form
    676.26/932.67 = 427.32/x
  3. Step 3: Cross multiply
    676.26x = 932.67 × 427.32
  4. Step 4: Simplify right side
    676.26x = 398,548.54
  5. Step 5: Solve for x
    x = 398,548.54/676.26
  6. Step 6: Final answer
    x = 589.34

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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.