Home / 789,477.54-1,089,478.17-426,900.48

Finding the Fourth Proportional to 789,477.54, 1,089,478.17 and 426,900.48

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Solution

The fourth proportional to 789,477.54, 1,089,478.17 and 426,900.48 is: 589,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,477.54 : 1,089,478.17 = 426,900.48 : x
  2. Step 2: Convert to fraction form
    789,477.54/1,089,478.17 = 426,900.48/x
  3. Step 3: Cross multiply
    789,477.54x = 1,089,478.17 × 426,900.48
  4. Step 4: Simplify right side
    789,477.54x = 465,098,753,722.52
  5. Step 5: Solve for x
    x = 465,098,753,722.52/789,477.54
  6. Step 6: Final answer
    x = 589,122.21

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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.