Home / 1,294,317.36-1,786,166.84-721,394.43

Finding the Fourth Proportional to 1,294,317.36, 1,786,166.84 and 721,394.43

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Solution

The fourth proportional to 1,294,317.36, 1,786,166.84 and 721,394.43 is: 995,529.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,317.36 : 1,786,166.84 = 721,394.43 : x
  2. Step 2: Convert to fraction form
    1,294,317.36/1,786,166.84 = 721,394.43/x
  3. Step 3: Cross multiply
    1,294,317.36x = 1,786,166.84 × 721,394.43
  4. Step 4: Simplify right side
    1,294,317.36x = 1,288,530,805,819.73
  5. Step 5: Solve for x
    x = 1,288,530,805,819.73/1,294,317.36
  6. Step 6: Final answer
    x = 995,529.26

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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.