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Finding the Fourth Proportional to 864,408.50, 1,296,620.04 and 303,443

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Solution

The fourth proportional to 864,408.50, 1,296,620.04 and 303,443 is: 455,167.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,408.50 : 1,296,620.04 = 303,443 : x
  2. Step 2: Convert to fraction form
    864,408.50/1,296,620.04 = 303,443/x
  3. Step 3: Cross multiply
    864,408.50x = 1,296,620.04 × 303,443
  4. Step 4: Simplify right side
    864,408.50x = 393,450,274,797.72
  5. Step 5: Solve for x
    x = 393,450,274,797.72/864,408.50
  6. Step 6: Final answer
    x = 455,167.06

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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.