Home / 789,687.73-1,089,769.26-445,596.72

Finding the Fourth Proportional to 789,687.73, 1,089,769.26 and 445,596.72

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Solution

The fourth proportional to 789,687.73, 1,089,769.26 and 445,596.72 is: 614,923.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,687.73 : 1,089,769.26 = 445,596.72 : x
  2. Step 2: Convert to fraction form
    789,687.73/1,089,769.26 = 445,596.72/x
  3. Step 3: Cross multiply
    789,687.73x = 1,089,769.26 × 445,596.72
  4. Step 4: Simplify right side
    789,687.73x = 485,597,607,812.83
  5. Step 5: Solve for x
    x = 485,597,607,812.83/789,687.73
  6. Step 6: Final answer
    x = 614,923.58

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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.