Home / 3,398,986.42-4,691,001.76-1,909,083.78

Finding the Fourth Proportional to 3,398,986.42, 4,691,001.76 and 1,909,083.78

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Solution

The fourth proportional to 3,398,986.42, 4,691,001.76 and 1,909,083.78 is: 2,634,760.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398,986.42 : 4,691,001.76 = 1,909,083.78 : x
  2. Step 2: Convert to fraction form
    3,398,986.42/4,691,001.76 = 1,909,083.78/x
  3. Step 3: Cross multiply
    3,398,986.42x = 4,691,001.76 × 1,909,083.78
  4. Step 4: Simplify right side
    3,398,986.42x = 8,955,515,367,194.74
  5. Step 5: Solve for x
    x = 8,955,515,367,194.74/3,398,986.42
  6. Step 6: Final answer
    x = 2,634,760.56

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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.