Home / 727,131.78-1,091,195.94-253,817.22

Finding the Fourth Proportional to 727,131.78, 1,091,195.94 and 253,817.22

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Solution

The fourth proportional to 727,131.78, 1,091,195.94 and 253,817.22 is: 380,899.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,131.78 : 1,091,195.94 = 253,817.22 : x
  2. Step 2: Convert to fraction form
    727,131.78/1,091,195.94 = 253,817.22/x
  3. Step 3: Cross multiply
    727,131.78x = 1,091,195.94 × 253,817.22
  4. Step 4: Simplify right side
    727,131.78x = 276,964,319,966.09
  5. Step 5: Solve for x
    x = 276,964,319,966.09/727,131.78
  6. Step 6: Final answer
    x = 380,899.76

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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.