Home / 2,189,396.32-3,021,338.32-1,222,543.12

Finding the Fourth Proportional to 2,189,396.32, 3,021,338.32 and 1,222,543.12

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Solution

The fourth proportional to 2,189,396.32, 3,021,338.32 and 1,222,543.12 is: 1,687,093.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,396.32 : 3,021,338.32 = 1,222,543.12 : x
  2. Step 2: Convert to fraction form
    2,189,396.32/3,021,338.32 = 1,222,543.12/x
  3. Step 3: Cross multiply
    2,189,396.32x = 3,021,338.32 × 1,222,543.12
  4. Step 4: Simplify right side
    2,189,396.32x = 3,693,716,376,308.36
  5. Step 5: Solve for x
    x = 3,693,716,376,308.36/2,189,396.32
  6. Step 6: Final answer
    x = 1,687,093.53

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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.