Home / 460,730.82-691,107.17-123,771.90

Finding the Fourth Proportional to 460,730.82, 691,107.17 and 123,771.90

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Solution

The fourth proportional to 460,730.82, 691,107.17 and 123,771.90 is: 185,660.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,730.82 : 691,107.17 = 123,771.90 : x
  2. Step 2: Convert to fraction form
    460,730.82/691,107.17 = 123,771.90/x
  3. Step 3: Cross multiply
    460,730.82x = 691,107.17 × 123,771.90
  4. Step 4: Simplify right side
    460,730.82x = 85,539,646,915.66
  5. Step 5: Solve for x
    x = 85,539,646,915.66/460,730.82
  6. Step 6: Final answer
    x = 185,660.79

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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.