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Finding the Fourth Proportional to 496.76, 686.22 and 472.46

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Solution

The fourth proportional to 496.76, 686.22 and 472.46 is: 652.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.76 : 686.22 = 472.46 : x
  2. Step 2: Convert to fraction form
    496.76/686.22 = 472.46/x
  3. Step 3: Cross multiply
    496.76x = 686.22 × 472.46
  4. Step 4: Simplify right side
    496.76x = 324,211.50
  5. Step 5: Solve for x
    x = 324,211.50/496.76
  6. Step 6: Final answer
    x = 652.65

Related Problems

Find fourth proportional to 248.38, 343.11 and 236.23
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Double scale
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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.