Home / 655,890.29-981,613.31-403,330.73

Finding the Fourth Proportional to 655,890.29, 981,613.31 and 403,330.73

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Solution

The fourth proportional to 655,890.29, 981,613.31 and 403,330.73 is: 603,629.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,890.29 : 981,613.31 = 403,330.73 : x
  2. Step 2: Convert to fraction form
    655,890.29/981,613.31 = 403,330.73/x
  3. Step 3: Cross multiply
    655,890.29x = 981,613.31 × 403,330.73
  4. Step 4: Simplify right side
    655,890.29x = 395,914,813,337.40
  5. Step 5: Solve for x
    x = 395,914,813,337.40/655,890.29
  6. Step 6: Final answer
    x = 603,629.64

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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.