Home / 1,381,436.38-1,905,876.57-837,179.56

Finding the Fourth Proportional to 1,381,436.38, 1,905,876.57 and 837,179.56

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Solution

The fourth proportional to 1,381,436.38, 1,905,876.57 and 837,179.56 is: 1,155,001.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,436.38 : 1,905,876.57 = 837,179.56 : x
  2. Step 2: Convert to fraction form
    1,381,436.38/1,905,876.57 = 837,179.56/x
  3. Step 3: Cross multiply
    1,381,436.38x = 1,905,876.57 × 837,179.56
  4. Step 4: Simplify right side
    1,381,436.38x = 1,595,560,908,286.91
  5. Step 5: Solve for x
    x = 1,595,560,908,286.91/1,381,436.38
  6. Step 6: Final answer
    x = 1,155,001.37

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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.