Home / 2,609,465.82-3,914,760.87-787,678.14

Finding the Fourth Proportional to 2,609,465.82, 3,914,760.87 and 787,678.14

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Solution

The fourth proportional to 2,609,465.82, 3,914,760.87 and 787,678.14 is: 1,181,686.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609,465.82 : 3,914,760.87 = 787,678.14 : x
  2. Step 2: Convert to fraction form
    2,609,465.82/3,914,760.87 = 787,678.14/x
  3. Step 3: Cross multiply
    2,609,465.82x = 3,914,760.87 × 787,678.14
  4. Step 4: Simplify right side
    2,609,465.82x = 3,083,571,560,626.38
  5. Step 5: Solve for x
    x = 3,083,571,560,626.38/2,609,465.82
  6. Step 6: Final answer
    x = 1,181,686.89

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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.