Home / 1,222,659.41-1,687,324.50-678,802.73

Finding the Fourth Proportional to 1,222,659.41, 1,687,324.50 and 678,802.73

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Solution

The fourth proportional to 1,222,659.41, 1,687,324.50 and 678,802.73 is: 936,778.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,659.41 : 1,687,324.50 = 678,802.73 : x
  2. Step 2: Convert to fraction form
    1,222,659.41/1,687,324.50 = 678,802.73/x
  3. Step 3: Cross multiply
    1,222,659.41x = 1,687,324.50 × 678,802.73
  4. Step 4: Simplify right side
    1,222,659.41x = 1,145,360,468,559.26
  5. Step 5: Solve for x
    x = 1,145,360,468,559.26/1,222,659.41
  6. Step 6: Final answer
    x = 936,778.03

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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.