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Finding the Fourth Proportional to 461,630.72, 691,525.92 and 303,379.40

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Solution

The fourth proportional to 461,630.72, 691,525.92 and 303,379.40 is: 454,464.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,630.72 : 691,525.92 = 303,379.40 : x
  2. Step 2: Convert to fraction form
    461,630.72/691,525.92 = 303,379.40/x
  3. Step 3: Cross multiply
    461,630.72x = 691,525.92 × 303,379.40
  4. Step 4: Simplify right side
    461,630.72x = 209,794,718,694.05
  5. Step 5: Solve for x
    x = 209,794,718,694.05/461,630.72
  6. Step 6: Final answer
    x = 454,464.38

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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.