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Finding the Fourth Proportional to 703.20, 963.37 and 676.91

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Solution

The fourth proportional to 703.20, 963.37 and 676.91 is: 927.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.20 : 963.37 = 676.91 : x
  2. Step 2: Convert to fraction form
    703.20/963.37 = 676.91/x
  3. Step 3: Cross multiply
    703.20x = 963.37 × 676.91
  4. Step 4: Simplify right side
    703.20x = 652,119.95
  5. Step 5: Solve for x
    x = 652,119.95/703.20
  6. Step 6: Final answer
    x = 927.37

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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.