Home / 2,198,689.40-3,298,034.10-1,820,775.80

Finding the Fourth Proportional to 2,198,689.40, 3,298,034.10 and 1,820,775.80

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Solution

The fourth proportional to 2,198,689.40, 3,298,034.10 and 1,820,775.80 is: 2,731,163.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198,689.40 : 3,298,034.10 = 1,820,775.80 : x
  2. Step 2: Convert to fraction form
    2,198,689.40/3,298,034.10 = 1,820,775.80/x
  3. Step 3: Cross multiply
    2,198,689.40x = 3,298,034.10 × 1,820,775.80
  4. Step 4: Simplify right side
    2,198,689.40x = 6,004,980,676,854.78
  5. Step 5: Solve for x
    x = 6,004,980,676,854.78/2,198,689.40
  6. Step 6: Final answer
    x = 2,731,163.70

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Similar ratio
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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.