Home / 789,563.79-1,089,584.46-445,400.46

Finding the Fourth Proportional to 789,563.79, 1,089,584.46 and 445,400.46

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Solution

The fourth proportional to 789,563.79, 1,089,584.46 and 445,400.46 is: 614,644.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,563.79 : 1,089,584.46 = 445,400.46 : x
  2. Step 2: Convert to fraction form
    789,563.79/1,089,584.46 = 445,400.46/x
  3. Step 3: Cross multiply
    789,563.79x = 1,089,584.46 × 445,400.46
  4. Step 4: Simplify right side
    789,563.79x = 485,301,419,692.85
  5. Step 5: Solve for x
    x = 485,301,419,692.85/789,563.79
  6. Step 6: Final answer
    x = 614,644.98

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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.