Home / 812,857.14-1,121,694.82-445,261.15

Finding the Fourth Proportional to 812,857.14, 1,121,694.82 and 445,261.15

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Solution

The fourth proportional to 812,857.14, 1,121,694.82 and 445,261.15 is: 614,434.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,857.14 : 1,121,694.82 = 445,261.15 : x
  2. Step 2: Convert to fraction form
    812,857.14/1,121,694.82 = 445,261.15/x
  3. Step 3: Cross multiply
    812,857.14x = 1,121,694.82 × 445,261.15
  4. Step 4: Simplify right side
    812,857.14x = 499,447,125,791.21
  5. Step 5: Solve for x
    x = 499,447,125,791.21/812,857.14
  6. Step 6: Final answer
    x = 614,434.08

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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.