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Finding the Fourth Proportional to 381,864.30, 573,408.45 and 303,629.10

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Solution

The fourth proportional to 381,864.30, 573,408.45 and 303,629.10 is: 455,930.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,864.30 : 573,408.45 = 303,629.10 : x
  2. Step 2: Convert to fraction form
    381,864.30/573,408.45 = 303,629.10/x
  3. Step 3: Cross multiply
    381,864.30x = 573,408.45 × 303,629.10
  4. Step 4: Simplify right side
    381,864.30x = 174,103,491,605.90
  5. Step 5: Solve for x
    x = 174,103,491,605.90/381,864.30
  6. Step 6: Final answer
    x = 455,930.27

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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.