Home / 1,378,428.22-2,067,369.72-1,310,072.68

Finding the Fourth Proportional to 1,378,428.22, 2,067,369.72 and 1,310,072.68

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Solution

The fourth proportional to 1,378,428.22, 2,067,369.72 and 1,310,072.68 is: 1,964,849.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,428.22 : 2,067,369.72 = 1,310,072.68 : x
  2. Step 2: Convert to fraction form
    1,378,428.22/2,067,369.72 = 1,310,072.68/x
  3. Step 3: Cross multiply
    1,378,428.22x = 2,067,369.72 × 1,310,072.68
  4. Step 4: Simplify right side
    1,378,428.22x = 2,708,404,589,631.25
  5. Step 5: Solve for x
    x = 2,708,404,589,631.25/1,378,428.22
  6. Step 6: Final answer
    x = 1,964,849.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.