Home / 812,478.00-1,121,205.85-449,894.07

Finding the Fourth Proportional to 812,478.00, 1,121,205.85 and 449,894.07

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Solution

The fourth proportional to 812,478.00, 1,121,205.85 and 449,894.07 is: 620,846.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,478.00 : 1,121,205.85 = 449,894.07 : x
  2. Step 2: Convert to fraction form
    812,478.00/1,121,205.85 = 449,894.07/x
  3. Step 3: Cross multiply
    812,478.00x = 1,121,205.85 × 449,894.07
  4. Step 4: Simplify right side
    812,478.00x = 504,423,863,726.68
  5. Step 5: Solve for x
    x = 504,423,863,726.68/812,478.00
  6. Step 6: Final answer
    x = 620,846.18

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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.