Home / 789,676.20-1,089,749.92-427,100.48

Finding the Fourth Proportional to 789,676.20, 1,089,749.92 and 427,100.48

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Solution

The fourth proportional to 789,676.20, 1,089,749.92 and 427,100.48 is: 589,396.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,676.20 : 1,089,749.92 = 427,100.48 : x
  2. Step 2: Convert to fraction form
    789,676.20/1,089,749.92 = 427,100.48/x
  3. Step 3: Cross multiply
    789,676.20x = 1,089,749.92 × 427,100.48
  4. Step 4: Simplify right side
    789,676.20x = 465,432,713,911.96
  5. Step 5: Solve for x
    x = 465,432,713,911.96/789,676.20
  6. Step 6: Final answer
    x = 589,396.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.