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Finding the Fourth Proportional to 655,350.60, 981,766.47 and 401,892

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Solution

The fourth proportional to 655,350.60, 981,766.47 and 401,892 is: 602,065.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,350.60 : 981,766.47 = 401,892 : x
  2. Step 2: Convert to fraction form
    655,350.60/981,766.47 = 401,892/x
  3. Step 3: Cross multiply
    655,350.60x = 981,766.47 × 401,892
  4. Step 4: Simplify right side
    655,350.60x = 394,564,090,161.24
  5. Step 5: Solve for x
    x = 394,564,090,161.24/655,350.60
  6. Step 6: Final answer
    x = 602,065.66

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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.