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Finding the Fourth Proportional to 603,337.20, 905,202.66 and 287,753.10

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Solution

The fourth proportional to 603,337.20, 905,202.66 and 287,753.10 is: 431,723.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,337.20 : 905,202.66 = 287,753.10 : x
  2. Step 2: Convert to fraction form
    603,337.20/905,202.66 = 287,753.10/x
  3. Step 3: Cross multiply
    603,337.20x = 905,202.66 × 287,753.10
  4. Step 4: Simplify right side
    603,337.20x = 260,474,871,543.25
  5. Step 5: Solve for x
    x = 260,474,871,543.25/603,337.20
  6. Step 6: Final answer
    x = 431,723.54

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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.