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Finding the Fourth Proportional to 486,067.80, 729,101.70 and 307,997.40

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Solution

The fourth proportional to 486,067.80, 729,101.70 and 307,997.40 is: 461,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,067.80 : 729,101.70 = 307,997.40 : x
  2. Step 2: Convert to fraction form
    486,067.80/729,101.70 = 307,997.40/x
  3. Step 3: Cross multiply
    486,067.80x = 729,101.70 × 307,997.40
  4. Step 4: Simplify right side
    486,067.80x = 224,561,427,935.58
  5. Step 5: Solve for x
    x = 224,561,427,935.58/486,067.80
  6. Step 6: Final answer
    x = 461,996.10

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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.