Home / 812,466.26-1,121,189.73-449,882.32

Finding the Fourth Proportional to 812,466.26, 1,121,189.73 and 449,882.32

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Solution

The fourth proportional to 812,466.26, 1,121,189.73 and 449,882.32 is: 620,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,466.26 : 1,121,189.73 = 449,882.32 : x
  2. Step 2: Convert to fraction form
    812,466.26/1,121,189.73 = 449,882.32/x
  3. Step 3: Cross multiply
    812,466.26x = 1,121,189.73 × 449,882.32
  4. Step 4: Simplify right side
    812,466.26x = 504,403,436,892.57
  5. Step 5: Solve for x
    x = 504,403,436,892.57/812,466.26
  6. Step 6: Final answer
    x = 620,830.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.