Home / 3,121,721.69-4,307,993.19-1,745,123.42

Finding the Fourth Proportional to 3,121,721.69, 4,307,993.19 and 1,745,123.42

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Solution

The fourth proportional to 3,121,721.69, 4,307,993.19 and 1,745,123.42 is: 2,408,279.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,721.69 : 4,307,993.19 = 1,745,123.42 : x
  2. Step 2: Convert to fraction form
    3,121,721.69/4,307,993.19 = 1,745,123.42/x
  3. Step 3: Cross multiply
    3,121,721.69x = 4,307,993.19 × 1,745,123.42
  4. Step 4: Simplify right side
    3,121,721.69x = 7,517,979,787,529.55
  5. Step 5: Solve for x
    x = 7,517,979,787,529.55/3,121,721.69
  6. Step 6: Final answer
    x = 2,408,279.96

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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.