Home / 789,620.94-1,089,673.76-427,045.23

Finding the Fourth Proportional to 789,620.94, 1,089,673.76 and 427,045.23

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Solution

The fourth proportional to 789,620.94, 1,089,673.76 and 427,045.23 is: 589,320.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,620.94 : 1,089,673.76 = 427,045.23 : x
  2. Step 2: Convert to fraction form
    789,620.94/1,089,673.76 = 427,045.23/x
  3. Step 3: Cross multiply
    789,620.94x = 1,089,673.76 × 427,045.23
  4. Step 4: Simplify right side
    789,620.94x = 465,339,982,531.78
  5. Step 5: Solve for x
    x = 465,339,982,531.78/789,620.94
  6. Step 6: Final answer
    x = 589,320.72

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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.