Home / 805,231.72-1,207,156.38-449,954.92

Finding the Fourth Proportional to 805,231.72, 1,207,156.38 and 449,954.92

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Solution

The fourth proportional to 805,231.72, 1,207,156.38 and 449,954.92 is: 674,546.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,231.72 : 1,207,156.38 = 449,954.92 : x
  2. Step 2: Convert to fraction form
    805,231.72/1,207,156.38 = 449,954.92/x
  3. Step 3: Cross multiply
    805,231.72x = 1,207,156.38 × 449,954.92
  4. Step 4: Simplify right side
    805,231.72x = 543,165,952,390.39
  5. Step 5: Solve for x
    x = 543,165,952,390.39/805,231.72
  6. Step 6: Final answer
    x = 674,546.14

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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.