Home / 812,377.94-1,121,003.72-449,788.52

Finding the Fourth Proportional to 812,377.94, 1,121,003.72 and 449,788.52

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Solution

The fourth proportional to 812,377.94, 1,121,003.72 and 449,788.52 is: 620,665.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,377.94 : 1,121,003.72 = 449,788.52 : x
  2. Step 2: Convert to fraction form
    812,377.94/1,121,003.72 = 449,788.52/x
  3. Step 3: Cross multiply
    812,377.94x = 1,121,003.72 × 449,788.52
  4. Step 4: Simplify right side
    812,377.94x = 504,214,604,133.29
  5. Step 5: Solve for x
    x = 504,214,604,133.29/812,377.94
  6. Step 6: Final answer
    x = 620,665.06

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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.