Home / 1,272,976.27-1,756,277.27-721,632.83

Finding the Fourth Proportional to 1,272,976.27, 1,756,277.27 and 721,632.83

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Solution

The fourth proportional to 1,272,976.27, 1,756,277.27 and 721,632.83 is: 995,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,976.27 : 1,756,277.27 = 721,632.83 : x
  2. Step 2: Convert to fraction form
    1,272,976.27/1,756,277.27 = 721,632.83/x
  3. Step 3: Cross multiply
    1,272,976.27x = 1,756,277.27 × 721,632.83
  4. Step 4: Simplify right side
    1,272,976.27x = 1,267,387,326,931.35
  5. Step 5: Solve for x
    x = 1,267,387,326,931.35/1,272,976.27
  6. Step 6: Final answer
    x = 995,609.55

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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.