Home / 789,672.33-1,089,747.78-427,096.23

Finding the Fourth Proportional to 789,672.33, 1,089,747.78 and 427,096.23

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Solution

The fourth proportional to 789,672.33, 1,089,747.78 and 427,096.23 is: 589,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,672.33 : 1,089,747.78 = 427,096.23 : x
  2. Step 2: Convert to fraction form
    789,672.33/1,089,747.78 = 427,096.23/x
  3. Step 3: Cross multiply
    789,672.33x = 1,089,747.78 × 427,096.23
  4. Step 4: Simplify right side
    789,672.33x = 465,427,168,488.87
  5. Step 5: Solve for x
    x = 465,427,168,488.87/789,672.33
  6. Step 6: Final answer
    x = 589,392.78

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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.