Home / 1,299,196.20-1,948,794.30-820,899.30

Finding the Fourth Proportional to 1,299,196.20, 1,948,794.30 and 820,899.30

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Solution

The fourth proportional to 1,299,196.20, 1,948,794.30 and 820,899.30 is: 1,231,348.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,196.20 : 1,948,794.30 = 820,899.30 : x
  2. Step 2: Convert to fraction form
    1,299,196.20/1,948,794.30 = 820,899.30/x
  3. Step 3: Cross multiply
    1,299,196.20x = 1,948,794.30 × 820,899.30
  4. Step 4: Simplify right side
    1,299,196.20x = 1,599,763,876,713.99
  5. Step 5: Solve for x
    x = 1,599,763,876,713.99/1,299,196.20
  6. Step 6: Final answer
    x = 1,231,348.95

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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.