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Finding the Fourth Proportional to 676.35, 927.53 and 648.28

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Solution

The fourth proportional to 676.35, 927.53 and 648.28 is: 889.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.35 : 927.53 = 648.28 : x
  2. Step 2: Convert to fraction form
    676.35/927.53 = 648.28/x
  3. Step 3: Cross multiply
    676.35x = 927.53 × 648.28
  4. Step 4: Simplify right side
    676.35x = 601,299.50
  5. Step 5: Solve for x
    x = 601,299.50/676.35
  6. Step 6: Final answer
    x = 889.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.