Home / 814,912.80-1,222,366.32-253,947.68

Finding the Fourth Proportional to 814,912.80, 1,222,366.32 and 253,947.68

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Solution

The fourth proportional to 814,912.80, 1,222,366.32 and 253,947.68 is: 380,920.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,912.80 : 1,222,366.32 = 253,947.68 : x
  2. Step 2: Convert to fraction form
    814,912.80/1,222,366.32 = 253,947.68/x
  3. Step 3: Cross multiply
    814,912.80x = 1,222,366.32 × 253,947.68
  4. Step 4: Simplify right side
    814,912.80x = 310,417,091,074.14
  5. Step 5: Solve for x
    x = 310,417,091,074.14/814,912.80
  6. Step 6: Final answer
    x = 380,920.62

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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.