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Finding the Fourth Proportional to 653,910.60, 981,027.90 and 298,849.80

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Solution

The fourth proportional to 653,910.60, 981,027.90 and 298,849.80 is: 448,348.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,910.60 : 981,027.90 = 298,849.80 : x
  2. Step 2: Convert to fraction form
    653,910.60/981,027.90 = 298,849.80/x
  3. Step 3: Cross multiply
    653,910.60x = 981,027.90 × 298,849.80
  4. Step 4: Simplify right side
    653,910.60x = 293,179,991,709.42
  5. Step 5: Solve for x
    x = 293,179,991,709.42/653,910.60
  6. Step 6: Final answer
    x = 448,348.74

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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.