Home / 1,280,617.69-1,767,277.75-699,876.78

Finding the Fourth Proportional to 1,280,617.69, 1,767,277.75 and 699,876.78

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Solution

The fourth proportional to 1,280,617.69, 1,767,277.75 and 699,876.78 is: 965,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,617.69 : 1,767,277.75 = 699,876.78 : x
  2. Step 2: Convert to fraction form
    1,280,617.69/1,767,277.75 = 699,876.78/x
  3. Step 3: Cross multiply
    1,280,617.69x = 1,767,277.75 × 699,876.78
  4. Step 4: Simplify right side
    1,280,617.69x = 1,236,876,661,035.65
  5. Step 5: Solve for x
    x = 1,236,876,661,035.65/1,280,617.69
  6. Step 6: Final answer
    x = 965,843.81

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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.