Home / 2,666,920.20-3,999,974.28-869,800.80

Finding the Fourth Proportional to 2,666,920.20, 3,999,974.28 and 869,800.80

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Solution

The fourth proportional to 2,666,920.20, 3,999,974.28 and 869,800.80 is: 1,304,568.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666,920.20 : 3,999,974.28 = 869,800.80 : x
  2. Step 2: Convert to fraction form
    2,666,920.20/3,999,974.28 = 869,800.80/x
  3. Step 3: Cross multiply
    2,666,920.20x = 3,999,974.28 × 869,800.80
  4. Step 4: Simplify right side
    2,666,920.20x = 3,479,180,828,723.42
  5. Step 5: Solve for x
    x = 3,479,180,828,723.42/2,666,920.20
  6. Step 6: Final answer
    x = 1,304,568.78

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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.