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Finding the Fourth Proportional to 486,092.80, 729,139.20 and 273,516.40

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Solution

The fourth proportional to 486,092.80, 729,139.20 and 273,516.40 is: 410,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,092.80 : 729,139.20 = 273,516.40 : x
  2. Step 2: Convert to fraction form
    486,092.80/729,139.20 = 273,516.40/x
  3. Step 3: Cross multiply
    486,092.80x = 729,139.20 × 273,516.40
  4. Step 4: Simplify right side
    486,092.80x = 199,431,529,082.88
  5. Step 5: Solve for x
    x = 199,431,529,082.88/486,092.80
  6. Step 6: Final answer
    x = 410,274.60

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Similar ratio
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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.