Home / 1,257,897.68-1,735,703.40-721,250

Finding the Fourth Proportional to 1,257,897.68, 1,735,703.40 and 721,250

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Solution

The fourth proportional to 1,257,897.68, 1,735,703.40 and 721,250 is: 995,212.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,897.68 : 1,735,703.40 = 721,250 : x
  2. Step 2: Convert to fraction form
    1,257,897.68/1,735,703.40 = 721,250/x
  3. Step 3: Cross multiply
    1,257,897.68x = 1,735,703.40 × 721,250
  4. Step 4: Simplify right side
    1,257,897.68x = 1,251,876,077,250
  5. Step 5: Solve for x
    x = 1,251,876,077,250/1,257,897.68
  6. Step 6: Final answer
    x = 995,212.96

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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.