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Finding the Fourth Proportional to 603,346.78, 905,401.32 and 337,281.85

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Solution

The fourth proportional to 603,346.78, 905,401.32 and 337,281.85 is: 506,135.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,346.78 : 905,401.32 = 337,281.85 : x
  2. Step 2: Convert to fraction form
    603,346.78/905,401.32 = 337,281.85/x
  3. Step 3: Cross multiply
    603,346.78x = 905,401.32 × 337,281.85
  4. Step 4: Simplify right side
    603,346.78x = 305,375,432,202.04
  5. Step 5: Solve for x
    x = 305,375,432,202.04/603,346.78
  6. Step 6: Final answer
    x = 506,135.84

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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.