Home / 789,643.44-1,089,707.95-427,067.30

Finding the Fourth Proportional to 789,643.44, 1,089,707.95 and 427,067.30

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Solution

The fourth proportional to 789,643.44, 1,089,707.95 and 427,067.30 is: 589,352.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,643.44 : 1,089,707.95 = 427,067.30 : x
  2. Step 2: Convert to fraction form
    789,643.44/1,089,707.95 = 427,067.30/x
  3. Step 3: Cross multiply
    789,643.44x = 1,089,707.95 × 427,067.30
  4. Step 4: Simplify right side
    789,643.44x = 465,378,631,995.04
  5. Step 5: Solve for x
    x = 465,378,631,995.04/789,643.44
  6. Step 6: Final answer
    x = 589,352.88

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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.