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Finding the Fourth Proportional to 603,355.38, 905,414.55 and 337,290.54

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Solution

The fourth proportional to 603,355.38, 905,414.55 and 337,290.54 is: 506,149.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,355.38 : 905,414.55 = 337,290.54 : x
  2. Step 2: Convert to fraction form
    603,355.38/905,414.55 = 337,290.54/x
  3. Step 3: Cross multiply
    603,355.38x = 905,414.55 × 337,290.54
  4. Step 4: Simplify right side
    603,355.38x = 305,387,762,493.36
  5. Step 5: Solve for x
    x = 305,387,762,493.36/603,355.38
  6. Step 6: Final answer
    x = 506,149.07

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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.