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Finding the Fourth Proportional to 510,964.49, 766,446.53 and 271,028.72

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Solution

The fourth proportional to 510,964.49, 766,446.53 and 271,028.72 is: 406,542.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,964.49 : 766,446.53 = 271,028.72 : x
  2. Step 2: Convert to fraction form
    510,964.49/766,446.53 = 271,028.72/x
  3. Step 3: Cross multiply
    510,964.49x = 766,446.53 × 271,028.72
  4. Step 4: Simplify right side
    510,964.49x = 207,729,016,786.97
  5. Step 5: Solve for x
    x = 207,729,016,786.97/510,964.49
  6. Step 6: Final answer
    x = 406,542.97

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Double scale
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Similar ratio
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1.5x scale

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.