Home / 1,972,321.67-2,721,846.39-1,089,268.17

Finding the Fourth Proportional to 1,972,321.67, 2,721,846.39 and 1,089,268.17

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Solution

The fourth proportional to 1,972,321.67, 2,721,846.39 and 1,089,268.17 is: 1,503,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972,321.67 : 2,721,846.39 = 1,089,268.17 : x
  2. Step 2: Convert to fraction form
    1,972,321.67/2,721,846.39 = 1,089,268.17/x
  3. Step 3: Cross multiply
    1,972,321.67x = 2,721,846.39 × 1,089,268.17
  4. Step 4: Simplify right side
    1,972,321.67x = 2,964,820,636,256.41
  5. Step 5: Solve for x
    x = 2,964,820,636,256.41/1,972,321.67
  6. Step 6: Final answer
    x = 1,503,213.54

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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.