Home / 1,612,161.80-2,420,105.10-865,665.80

Finding the Fourth Proportional to 1,612,161.80, 2,420,105.10 and 865,665.80

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Solution

The fourth proportional to 1,612,161.80, 2,420,105.10 and 865,665.80 is: 1,299,498.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612,161.80 : 2,420,105.10 = 865,665.80 : x
  2. Step 2: Convert to fraction form
    1,612,161.80/2,420,105.10 = 865,665.80/x
  3. Step 3: Cross multiply
    1,612,161.80x = 2,420,105.10 × 865,665.80
  4. Step 4: Simplify right side
    1,612,161.80x = 2,095,002,217,475.58
  5. Step 5: Solve for x
    x = 2,095,002,217,475.58/1,612,161.80
  6. Step 6: Final answer
    x = 1,299,498.73

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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.