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Finding the Fourth Proportional to 676.46, 1,014.69 and 632.72

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Solution

The fourth proportional to 676.46, 1,014.69 and 632.72 is: 949.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.46 : 1,014.69 = 632.72 : x
  2. Step 2: Convert to fraction form
    676.46/1,014.69 = 632.72/x
  3. Step 3: Cross multiply
    676.46x = 1,014.69 × 632.72
  4. Step 4: Simplify right side
    676.46x = 642,014.66
  5. Step 5: Solve for x
    x = 642,014.66/676.46
  6. Step 6: Final answer
    x = 949.08

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.