Home / 721,131.54-995,146.47-449,062.26

Finding the Fourth Proportional to 721,131.54, 995,146.47 and 449,062.26

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Solution

The fourth proportional to 721,131.54, 995,146.47 and 449,062.26 is: 619,696.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,131.54 : 995,146.47 = 449,062.26 : x
  2. Step 2: Convert to fraction form
    721,131.54/995,146.47 = 449,062.26/x
  3. Step 3: Cross multiply
    721,131.54x = 995,146.47 × 449,062.26
  4. Step 4: Simplify right side
    721,131.54x = 446,882,722,849.22
  5. Step 5: Solve for x
    x = 446,882,722,849.22/721,131.54
  6. Step 6: Final answer
    x = 619,696.54

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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.