Home / 2,193,105.20-3,289,657.80-772,689.20

Finding the Fourth Proportional to 2,193,105.20, 3,289,657.80 and 772,689.20

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Solution

The fourth proportional to 2,193,105.20, 3,289,657.80 and 772,689.20 is: 1,159,033.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193,105.20 : 3,289,657.80 = 772,689.20 : x
  2. Step 2: Convert to fraction form
    2,193,105.20/3,289,657.80 = 772,689.20/x
  3. Step 3: Cross multiply
    2,193,105.20x = 3,289,657.80 × 772,689.20
  4. Step 4: Simplify right side
    2,193,105.20x = 2,541,883,053,755.76
  5. Step 5: Solve for x
    x = 2,541,883,053,755.76/2,193,105.20
  6. Step 6: Final answer
    x = 1,159,033.80

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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.