Home / 1,294,447.50-1,786,345.74-721,523.88

Finding the Fourth Proportional to 1,294,447.50, 1,786,345.74 and 721,523.88

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Solution

The fourth proportional to 1,294,447.50, 1,786,345.74 and 721,523.88 is: 995,707.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,447.50 : 1,786,345.74 = 721,523.88 : x
  2. Step 2: Convert to fraction form
    1,294,447.50/1,786,345.74 = 721,523.88/x
  3. Step 3: Cross multiply
    1,294,447.50x = 1,786,345.74 × 721,523.88
  4. Step 4: Simplify right side
    1,294,447.50x = 1,288,891,109,346.27
  5. Step 5: Solve for x
    x = 1,288,891,109,346.27/1,294,447.50
  6. Step 6: Final answer
    x = 995,707.52

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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.