Home / 1,294,207.80-1,786,024.26-721,228.38

Finding the Fourth Proportional to 1,294,207.80, 1,786,024.26 and 721,228.38

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Solution

The fourth proportional to 1,294,207.80, 1,786,024.26 and 721,228.38 is: 995,304.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,207.80 : 1,786,024.26 = 721,228.38 : x
  2. Step 2: Convert to fraction form
    1,294,207.80/1,786,024.26 = 721,228.38/x
  3. Step 3: Cross multiply
    1,294,207.80x = 1,786,024.26 × 721,228.38
  4. Step 4: Simplify right side
    1,294,207.80x = 1,288,131,383,680.50
  5. Step 5: Solve for x
    x = 1,288,131,383,680.50/1,294,207.80
  6. Step 6: Final answer
    x = 995,304.91

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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.