Home / 1,226,436.96-1,691,034.66-839,439.22

Finding the Fourth Proportional to 1,226,436.96, 1,691,034.66 and 839,439.22

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Solution

The fourth proportional to 1,226,436.96, 1,691,034.66 and 839,439.22 is: 1,157,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,436.96 : 1,691,034.66 = 839,439.22 : x
  2. Step 2: Convert to fraction form
    1,226,436.96/1,691,034.66 = 839,439.22/x
  3. Step 3: Cross multiply
    1,226,436.96x = 1,691,034.66 × 839,439.22
  4. Step 4: Simplify right side
    1,226,436.96x = 1,419,520,815,983.37
  5. Step 5: Solve for x
    x = 1,419,520,815,983.37/1,226,436.96
  6. Step 6: Final answer
    x = 1,157,434.80

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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.