Home / 789,408.72-1,089,383.99-426,832.47

Finding the Fourth Proportional to 789,408.72, 1,089,383.99 and 426,832.47

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Solution

The fourth proportional to 789,408.72, 1,089,383.99 and 426,832.47 is: 589,028.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,408.72 : 1,089,383.99 = 426,832.47 : x
  2. Step 2: Convert to fraction form
    789,408.72/1,089,383.99 = 426,832.47/x
  3. Step 3: Cross multiply
    789,408.72x = 1,089,383.99 × 426,832.47
  4. Step 4: Simplify right side
    789,408.72x = 464,984,457,095.99
  5. Step 5: Solve for x
    x = 464,984,457,095.99/789,408.72
  6. Step 6: Final answer
    x = 589,028.78

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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.