Home / 1,427,504.11-1,969,774.06-815,696.53

Finding the Fourth Proportional to 1,427,504.11, 1,969,774.06 and 815,696.53

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Solution

The fourth proportional to 1,427,504.11, 1,969,774.06 and 815,696.53 is: 1,125,557.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,504.11 : 1,969,774.06 = 815,696.53 : x
  2. Step 2: Convert to fraction form
    1,427,504.11/1,969,774.06 = 815,696.53/x
  3. Step 3: Cross multiply
    1,427,504.11x = 1,969,774.06 × 815,696.53
  4. Step 4: Simplify right side
    1,427,504.11x = 1,606,737,853,737.90
  5. Step 5: Solve for x
    x = 1,606,737,853,737.90/1,427,504.11
  6. Step 6: Final answer
    x = 1,125,557.43

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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.