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Finding the Fourth Proportional to 620.20, 937.66 and 620.20

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Solution

The fourth proportional to 620.20, 937.66 and 620.20 is: 937.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.20 : 937.66 = 620.20 : x
  2. Step 2: Convert to fraction form
    620.20/937.66 = 620.20/x
  3. Step 3: Cross multiply
    620.20x = 937.66 × 620.20
  4. Step 4: Simplify right side
    620.20x = 581,536.73
  5. Step 5: Solve for x
    x = 581,536.73/620.20
  6. Step 6: Final answer
    x = 937.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.