Home / 2,666,919.20-3,999,972.78-869,799.80

Finding the Fourth Proportional to 2,666,919.20, 3,999,972.78 and 869,799.80

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Solution

The fourth proportional to 2,666,919.20, 3,999,972.78 and 869,799.80 is: 1,304,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666,919.20 : 3,999,972.78 = 869,799.80 : x
  2. Step 2: Convert to fraction form
    2,666,919.20/3,999,972.78 = 869,799.80/x
  3. Step 3: Cross multiply
    2,666,919.20x = 3,999,972.78 × 869,799.80
  4. Step 4: Simplify right side
    2,666,919.20x = 3,479,175,534,049.38
  5. Step 5: Solve for x
    x = 3,479,175,534,049.38/2,666,919.20
  6. Step 6: Final answer
    x = 1,304,567.29

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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.