Home / 721,073.58-995,040.93-394,321.74

Finding the Fourth Proportional to 721,073.58, 995,040.93 and 394,321.74

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Solution

The fourth proportional to 721,073.58, 995,040.93 and 394,321.74 is: 544,141.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,073.58 : 995,040.93 = 394,321.74 : x
  2. Step 2: Convert to fraction form
    721,073.58/995,040.93 = 394,321.74/x
  3. Step 3: Cross multiply
    721,073.58x = 995,040.93 × 394,321.74
  4. Step 4: Simplify right side
    721,073.58x = 392,366,270,888.82
  5. Step 5: Solve for x
    x = 392,366,270,888.82/721,073.58
  6. Step 6: Final answer
    x = 544,141.79

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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.