Home / 2,198,719.40-3,298,079.10-1,820,805.80

Finding the Fourth Proportional to 2,198,719.40, 3,298,079.10 and 1,820,805.80

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Solution

The fourth proportional to 2,198,719.40, 3,298,079.10 and 1,820,805.80 is: 2,731,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198,719.40 : 3,298,079.10 = 1,820,805.80 : x
  2. Step 2: Convert to fraction form
    2,198,719.40/3,298,079.10 = 1,820,805.80/x
  3. Step 3: Cross multiply
    2,198,719.40x = 3,298,079.10 × 1,820,805.80
  4. Step 4: Simplify right side
    2,198,719.40x = 6,005,161,554,138.78
  5. Step 5: Solve for x
    x = 6,005,161,554,138.78/2,198,719.40
  6. Step 6: Final answer
    x = 2,731,208.70

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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.