Home / 1,611,021.67-2,222,656.53-998,954.21

Finding the Fourth Proportional to 1,611,021.67, 2,222,656.53 and 998,954.21

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Solution

The fourth proportional to 1,611,021.67, 2,222,656.53 and 998,954.21 is: 1,378,213.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611,021.67 : 2,222,656.53 = 998,954.21 : x
  2. Step 2: Convert to fraction form
    1,611,021.67/2,222,656.53 = 998,954.21/x
  3. Step 3: Cross multiply
    1,611,021.67x = 2,222,656.53 × 998,954.21
  4. Step 4: Simplify right side
    1,611,021.67x = 2,220,332,098,027.49
  5. Step 5: Solve for x
    x = 2,220,332,098,027.49/1,611,021.67
  6. Step 6: Final answer
    x = 1,378,213.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.