Home / 1,115,957.22-1,538,575.48-722,790.66

Finding the Fourth Proportional to 1,115,957.22, 1,538,575.48 and 722,790.66

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Solution

The fourth proportional to 1,115,957.22, 1,538,575.48 and 722,790.66 is: 996,514.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,957.22 : 1,538,575.48 = 722,790.66 : x
  2. Step 2: Convert to fraction form
    1,115,957.22/1,538,575.48 = 722,790.66/x
  3. Step 3: Cross multiply
    1,115,957.22x = 1,538,575.48 × 722,790.66
  4. Step 4: Simplify right side
    1,115,957.22x = 1,112,067,980,601.98
  5. Step 5: Solve for x
    x = 1,112,067,980,601.98/1,115,957.22
  6. Step 6: Final answer
    x = 996,514.89

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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.