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Finding the Fourth Proportional to 603,753.91, 905,794.18 and 204,394.70

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Solution

The fourth proportional to 603,753.91, 905,794.18 and 204,394.70 is: 306,647.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,753.91 : 905,794.18 = 204,394.70 : x
  2. Step 2: Convert to fraction form
    603,753.91/905,794.18 = 204,394.70/x
  3. Step 3: Cross multiply
    603,753.91x = 905,794.18 × 204,394.70
  4. Step 4: Simplify right side
    603,753.91x = 185,139,531,436.35
  5. Step 5: Solve for x
    x = 185,139,531,436.35/603,753.91
  6. Step 6: Final answer
    x = 306,647.34

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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.