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Finding the Fourth Proportional to 603,168.98, 903,375.05 and 287,847.32

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Solution

The fourth proportional to 603,168.98, 903,375.05 and 287,847.32 is: 431,113.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,168.98 : 903,375.05 = 287,847.32 : x
  2. Step 2: Convert to fraction form
    603,168.98/903,375.05 = 287,847.32/x
  3. Step 3: Cross multiply
    603,168.98x = 903,375.05 × 287,847.32
  4. Step 4: Simplify right side
    603,168.98x = 260,034,081,141.25
  5. Step 5: Solve for x
    x = 260,034,081,141.25/603,168.98
  6. Step 6: Final answer
    x = 431,113.16

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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.