Home / 789,116.67-1,089,087.71-445,023.36

Finding the Fourth Proportional to 789,116.67, 1,089,087.71 and 445,023.36

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Solution

The fourth proportional to 789,116.67, 1,089,087.71 and 445,023.36 is: 614,192.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,116.67 : 1,089,087.71 = 445,023.36 : x
  2. Step 2: Convert to fraction form
    789,116.67/1,089,087.71 = 445,023.36/x
  3. Step 3: Cross multiply
    789,116.67x = 1,089,087.71 × 445,023.36
  4. Step 4: Simplify right side
    789,116.67x = 484,669,469,813.79
  5. Step 5: Solve for x
    x = 484,669,469,813.79/789,116.67
  6. Step 6: Final answer
    x = 614,192.41

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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.