Home / 812,493.94-1,121,227.86-449,910.04

Finding the Fourth Proportional to 812,493.94, 1,121,227.86 and 449,910.04

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Solution

The fourth proportional to 812,493.94, 1,121,227.86 and 449,910.04 is: 620,868.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,493.94 : 1,121,227.86 = 449,910.04 : x
  2. Step 2: Convert to fraction form
    812,493.94/1,121,227.86 = 449,910.04/x
  3. Step 3: Cross multiply
    812,493.94x = 1,121,227.86 × 449,910.04
  4. Step 4: Simplify right side
    812,493.94x = 504,451,671,341.71
  5. Step 5: Solve for x
    x = 504,451,671,341.71/812,493.94
  6. Step 6: Final answer
    x = 620,868.23

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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.