Home / 1,288,602.75-1,778,058.36-744,789.25

Finding the Fourth Proportional to 1,288,602.75, 1,778,058.36 and 744,789.25

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Solution

The fourth proportional to 1,288,602.75, 1,778,058.36 and 744,789.25 is: 1,027,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,602.75 : 1,778,058.36 = 744,789.25 : x
  2. Step 2: Convert to fraction form
    1,288,602.75/1,778,058.36 = 744,789.25/x
  3. Step 3: Cross multiply
    1,288,602.75x = 1,778,058.36 × 744,789.25
  4. Step 4: Simplify right side
    1,288,602.75x = 1,324,278,752,400.63
  5. Step 5: Solve for x
    x = 1,324,278,752,400.63/1,288,602.75
  6. Step 6: Final answer
    x = 1,027,685.80

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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.