Home / 1,222,910.15-1,687,559.73-679,080.56

Finding the Fourth Proportional to 1,222,910.15, 1,687,559.73 and 679,080.56

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Solution

The fourth proportional to 1,222,910.15, 1,687,559.73 and 679,080.56 is: 937,099.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,910.15 : 1,687,559.73 = 679,080.56 : x
  2. Step 2: Convert to fraction form
    1,222,910.15/1,687,559.73 = 679,080.56/x
  3. Step 3: Cross multiply
    1,222,910.15x = 1,687,559.73 × 679,080.56
  4. Step 4: Simplify right side
    1,222,910.15x = 1,145,989,006,481.85
  5. Step 5: Solve for x
    x = 1,145,989,006,481.85/1,222,910.15
  6. Step 6: Final answer
    x = 937,099.92

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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.