Home / 789,422.44-1,089,403.75-426,846.21

Finding the Fourth Proportional to 789,422.44, 1,089,403.75 and 426,846.21

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Solution

The fourth proportional to 789,422.44, 1,089,403.75 and 426,846.21 is: 589,048.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,422.44 : 1,089,403.75 = 426,846.21 : x
  2. Step 2: Convert to fraction form
    789,422.44/1,089,403.75 = 426,846.21/x
  3. Step 3: Cross multiply
    789,422.44x = 1,089,403.75 × 426,846.21
  4. Step 4: Simplify right side
    789,422.44x = 465,007,855,894.57
  5. Step 5: Solve for x
    x = 465,007,855,894.57/789,422.44
  6. Step 6: Final answer
    x = 589,048.19

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1.5x scale

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.