Home / 2,631,826.80-3,948,116.81-810,345.87

Finding the Fourth Proportional to 2,631,826.80, 3,948,116.81 and 810,345.87

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Solution

The fourth proportional to 2,631,826.80, 3,948,116.81 and 810,345.87 is: 1,215,634.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,826.80 : 3,948,116.81 = 810,345.87 : x
  2. Step 2: Convert to fraction form
    2,631,826.80/3,948,116.81 = 810,345.87/x
  3. Step 3: Cross multiply
    2,631,826.80x = 3,948,116.81 × 810,345.87
  4. Step 4: Simplify right side
    2,631,826.80x = 3,199,340,147,209.35
  5. Step 5: Solve for x
    x = 3,199,340,147,209.35/2,631,826.80
  6. Step 6: Final answer
    x = 1,215,634.76

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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.