Home / 1,265,212.76-1,745,950.28-721,523.75

Finding the Fourth Proportional to 1,265,212.76, 1,745,950.28 and 721,523.75

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Solution

The fourth proportional to 1,265,212.76, 1,745,950.28 and 721,523.75 is: 995,678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,212.76 : 1,745,950.28 = 721,523.75 : x
  2. Step 2: Convert to fraction form
    1,265,212.76/1,745,950.28 = 721,523.75/x
  3. Step 3: Cross multiply
    1,265,212.76x = 1,745,950.28 × 721,523.75
  4. Step 4: Simplify right side
    1,265,212.76x = 1,259,744,581,001.78
  5. Step 5: Solve for x
    x = 1,259,744,581,001.78/1,265,212.76
  6. Step 6: Final answer
    x = 995,678.06

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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.