Home / 1,253,109.68-1,729,245.02-680,137.58

Finding the Fourth Proportional to 1,253,109.68, 1,729,245.02 and 680,137.58

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Solution

The fourth proportional to 1,253,109.68, 1,729,245.02 and 680,137.58 is: 938,564.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,109.68 : 1,729,245.02 = 680,137.58 : x
  2. Step 2: Convert to fraction form
    1,253,109.68/1,729,245.02 = 680,137.58/x
  3. Step 3: Cross multiply
    1,253,109.68x = 1,729,245.02 × 680,137.58
  4. Step 4: Simplify right side
    1,253,109.68x = 1,176,124,523,129.85
  5. Step 5: Solve for x
    x = 1,176,124,523,129.85/1,253,109.68
  6. Step 6: Final answer
    x = 938,564.71

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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.