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Finding the Fourth Proportional to 655,350.05, 981,765.59 and 401,891.46

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Solution

The fourth proportional to 655,350.05, 981,765.59 and 401,891.46 is: 602,064.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,350.05 : 981,765.59 = 401,891.46 : x
  2. Step 2: Convert to fraction form
    655,350.05/981,765.59 = 401,891.46/x
  3. Step 3: Cross multiply
    655,350.05x = 981,765.59 × 401,891.46
  4. Step 4: Simplify right side
    655,350.05x = 394,563,204,333.40
  5. Step 5: Solve for x
    x = 394,563,204,333.40/655,350.05
  6. Step 6: Final answer
    x = 602,064.82

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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.