Home / 1,294,201.80-1,786,015.98-721,222.38

Finding the Fourth Proportional to 1,294,201.80, 1,786,015.98 and 721,222.38

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Solution

The fourth proportional to 1,294,201.80, 1,786,015.98 and 721,222.38 is: 995,296.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,201.80 : 1,786,015.98 = 721,222.38 : x
  2. Step 2: Convert to fraction form
    1,294,201.80/1,786,015.98 = 721,222.38/x
  3. Step 3: Cross multiply
    1,294,201.80x = 1,786,015.98 × 721,222.38
  4. Step 4: Simplify right side
    1,294,201.80x = 1,288,114,695,813.63
  5. Step 5: Solve for x
    x = 1,288,114,695,813.63/1,294,201.80
  6. Step 6: Final answer
    x = 995,296.63

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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.