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Finding the Fourth Proportional to 603,165.23, 903,369.42 and 287,843.57

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Solution

The fourth proportional to 603,165.23, 903,369.42 and 287,843.57 is: 431,107.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,165.23 : 903,369.42 = 287,843.57 : x
  2. Step 2: Convert to fraction form
    603,165.23/903,369.42 = 287,843.57/x
  3. Step 3: Cross multiply
    603,165.23x = 903,369.42 × 287,843.57
  4. Step 4: Simplify right side
    603,165.23x = 260,029,074,364.78
  5. Step 5: Solve for x
    x = 260,029,074,364.78/603,165.23
  6. Step 6: Final answer
    x = 431,107.54

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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.