Home / 1,333,726.75-1,840,542.78-721,879.41

Finding the Fourth Proportional to 1,333,726.75, 1,840,542.78 and 721,879.41

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Solution

The fourth proportional to 1,333,726.75, 1,840,542.78 and 721,879.41 is: 996,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,726.75 : 1,840,542.78 = 721,879.41 : x
  2. Step 2: Convert to fraction form
    1,333,726.75/1,840,542.78 = 721,879.41/x
  3. Step 3: Cross multiply
    1,333,726.75x = 1,840,542.78 × 721,879.41
  4. Step 4: Simplify right side
    1,333,726.75x = 1,328,649,936,106.16
  5. Step 5: Solve for x
    x = 1,328,649,936,106.16/1,333,726.75
  6. Step 6: Final answer
    x = 996,193.51

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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.