Home / 1,433,940.44-1,978,872.54-789,381.32

Finding the Fourth Proportional to 1,433,940.44, 1,978,872.54 and 789,381.32

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Solution

The fourth proportional to 1,433,940.44, 1,978,872.54 and 789,381.32 is: 1,089,365.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,940.44 : 1,978,872.54 = 789,381.32 : x
  2. Step 2: Convert to fraction form
    1,433,940.44/1,978,872.54 = 789,381.32/x
  3. Step 3: Cross multiply
    1,433,940.44x = 1,978,872.54 × 789,381.32
  4. Step 4: Simplify right side
    1,433,940.44x = 1,562,085,017,736.95
  5. Step 5: Solve for x
    x = 1,562,085,017,736.95/1,433,940.44
  6. Step 6: Final answer
    x = 1,089,365.34

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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.