Home / 2,188,902.70-3,283,365-989,420.68

Finding the Fourth Proportional to 2,188,902.70, 3,283,365 and 989,420.68

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Solution

The fourth proportional to 2,188,902.70, 3,283,365 and 989,420.68 is: 1,484,135.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,902.70 : 3,283,365 = 989,420.68 : x
  2. Step 2: Convert to fraction form
    2,188,902.70/3,283,365 = 989,420.68/x
  3. Step 3: Cross multiply
    2,188,902.70x = 3,283,365 × 989,420.68
  4. Step 4: Simplify right side
    2,188,902.70x = 3,248,629,230,988.20
  5. Step 5: Solve for x
    x = 3,248,629,230,988.20/2,188,902.70
  6. Step 6: Final answer
    x = 1,484,135.97

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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.