Home / 1,280,718.71-1,922,377.97-641,480.48

Finding the Fourth Proportional to 1,280,718.71, 1,922,377.97 and 641,480.48

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Solution

The fourth proportional to 1,280,718.71, 1,922,377.97 and 641,480.48 is: 962,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,718.71 : 1,922,377.97 = 641,480.48 : x
  2. Step 2: Convert to fraction form
    1,280,718.71/1,922,377.97 = 641,480.48/x
  3. Step 3: Cross multiply
    1,280,718.71x = 1,922,377.97 × 641,480.48
  4. Step 4: Simplify right side
    1,280,718.71x = 1,233,167,930,117.73
  5. Step 5: Solve for x
    x = 1,233,167,930,117.73/1,280,718.71
  6. Step 6: Final answer
    x = 962,871.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.