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Finding the Fourth Proportional to 981,709.22, 1,472,596.04 and 271,677.80

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Solution

The fourth proportional to 981,709.22, 1,472,596.04 and 271,677.80 is: 407,525.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,709.22 : 1,472,596.04 = 271,677.80 : x
  2. Step 2: Convert to fraction form
    981,709.22/1,472,596.04 = 271,677.80/x
  3. Step 3: Cross multiply
    981,709.22x = 1,472,596.04 × 271,677.80
  4. Step 4: Simplify right side
    981,709.22x = 400,071,656,796.60
  5. Step 5: Solve for x
    x = 400,071,656,796.60/981,709.22
  6. Step 6: Final answer
    x = 407,525.62

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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.