Home / 3,876,508.80-5,815,022.40-1,317,686.40

Finding the Fourth Proportional to 3,876,508.80, 5,815,022.40 and 1,317,686.40

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Solution

The fourth proportional to 3,876,508.80, 5,815,022.40 and 1,317,686.40 is: 1,976,617.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876,508.80 : 5,815,022.40 = 1,317,686.40 : x
  2. Step 2: Convert to fraction form
    3,876,508.80/5,815,022.40 = 1,317,686.40/x
  3. Step 3: Cross multiply
    3,876,508.80x = 5,815,022.40 × 1,317,686.40
  4. Step 4: Simplify right side
    3,876,508.80x = 7,662,375,932,175.36
  5. Step 5: Solve for x
    x = 7,662,375,932,175.36/3,876,508.80
  6. Step 6: Final answer
    x = 1,976,617.71

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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.