Home / 2,180,900.19-3,009,571.68-1,213,998.33

Finding the Fourth Proportional to 2,180,900.19, 3,009,571.68 and 1,213,998.33

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Solution

The fourth proportional to 2,180,900.19, 3,009,571.68 and 1,213,998.33 is: 1,675,278.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180,900.19 : 3,009,571.68 = 1,213,998.33 : x
  2. Step 2: Convert to fraction form
    2,180,900.19/3,009,571.68 = 1,213,998.33/x
  3. Step 3: Cross multiply
    2,180,900.19x = 3,009,571.68 × 1,213,998.33
  4. Step 4: Simplify right side
    2,180,900.19x = 3,653,614,993,535.30
  5. Step 5: Solve for x
    x = 3,653,614,993,535.30/2,180,900.19
  6. Step 6: Final answer
    x = 1,675,278.41

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1.5x scale

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.