Home / 789,661.46-1,089,732.80-427,085.33

Finding the Fourth Proportional to 789,661.46, 1,089,732.80 and 427,085.33

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Solution

The fourth proportional to 789,661.46, 1,089,732.80 and 427,085.33 is: 589,377.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,661.46 : 1,089,732.80 = 427,085.33 : x
  2. Step 2: Convert to fraction form
    789,661.46/1,089,732.80 = 427,085.33/x
  3. Step 3: Cross multiply
    789,661.46x = 1,089,732.80 × 427,085.33
  4. Step 4: Simplify right side
    789,661.46x = 465,408,884,915.73
  5. Step 5: Solve for x
    x = 465,408,884,915.73/789,661.46
  6. Step 6: Final answer
    x = 589,377.74

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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.