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Finding the Fourth Proportional to 381,704.70, 572,557.05 and 343,650.90

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Solution

The fourth proportional to 381,704.70, 572,557.05 and 343,650.90 is: 515,476.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,704.70 : 572,557.05 = 343,650.90 : x
  2. Step 2: Convert to fraction form
    381,704.70/572,557.05 = 343,650.90/x
  3. Step 3: Cross multiply
    381,704.70x = 572,557.05 × 343,650.90
  4. Step 4: Simplify right side
    381,704.70x = 196,759,745,533.85
  5. Step 5: Solve for x
    x = 196,759,745,533.85/381,704.70
  6. Step 6: Final answer
    x = 515,476.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.