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Finding the Fourth Proportional to 655,854.08, 981,559.10 and 403,294.54

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Solution

The fourth proportional to 655,854.08, 981,559.10 and 403,294.54 is: 603,575.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,854.08 : 981,559.10 = 403,294.54 : x
  2. Step 2: Convert to fraction form
    655,854.08/981,559.10 = 403,294.54/x
  3. Step 3: Cross multiply
    655,854.08x = 981,559.10 × 403,294.54
  4. Step 4: Simplify right side
    655,854.08x = 395,857,425,717.31
  5. Step 5: Solve for x
    x = 395,857,425,717.31/655,854.08
  6. Step 6: Final answer
    x = 603,575.46

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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.