Home / 789,761.26-1,089,870.67-427,184.96

Finding the Fourth Proportional to 789,761.26, 1,089,870.67 and 427,184.96

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Solution

The fourth proportional to 789,761.26, 1,089,870.67 and 427,184.96 is: 589,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,761.26 : 1,089,870.67 = 427,184.96 : x
  2. Step 2: Convert to fraction form
    789,761.26/1,089,870.67 = 427,184.96/x
  3. Step 3: Cross multiply
    789,761.26x = 1,089,870.67 × 427,184.96
  4. Step 4: Simplify right side
    789,761.26x = 465,576,358,569.12
  5. Step 5: Solve for x
    x = 465,576,358,569.12/789,761.26
  6. Step 6: Final answer
    x = 589,515.32

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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.