Home / 727,734.40-1,091,212.80-254,435.20

Finding the Fourth Proportional to 727,734.40, 1,091,212.80 and 254,435.20

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Solution

The fourth proportional to 727,734.40, 1,091,212.80 and 254,435.20 is: 381,516.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,734.40 : 1,091,212.80 = 254,435.20 : x
  2. Step 2: Convert to fraction form
    727,734.40/1,091,212.80 = 254,435.20/x
  3. Step 3: Cross multiply
    727,734.40x = 1,091,212.80 × 254,435.20
  4. Step 4: Simplify right side
    727,734.40x = 277,642,947,010.56
  5. Step 5: Solve for x
    x = 277,642,947,010.56/727,734.40
  6. Step 6: Final answer
    x = 381,516.87

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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.