Home / 727,121.13-1,091,179.94-253,806.45

Finding the Fourth Proportional to 727,121.13, 1,091,179.94 and 253,806.45

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Solution

The fourth proportional to 727,121.13, 1,091,179.94 and 253,806.45 is: 380,883.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,121.13 : 1,091,179.94 = 253,806.45 : x
  2. Step 2: Convert to fraction form
    727,121.13/1,091,179.94 = 253,806.45/x
  3. Step 3: Cross multiply
    727,121.13x = 1,091,179.94 × 253,806.45
  4. Step 4: Simplify right side
    727,121.13x = 276,948,505,613.58
  5. Step 5: Solve for x
    x = 276,948,505,613.58/727,121.13
  6. Step 6: Final answer
    x = 380,883.59

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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.