Home / 789,559.29-1,089,578.25-445,395.96

Finding the Fourth Proportional to 789,559.29, 1,089,578.25 and 445,395.96

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Solution

The fourth proportional to 789,559.29, 1,089,578.25 and 445,395.96 is: 614,638.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,559.29 : 1,089,578.25 = 445,395.96 : x
  2. Step 2: Convert to fraction form
    789,559.29/1,089,578.25 = 445,395.96/x
  3. Step 3: Cross multiply
    789,559.29x = 1,089,578.25 × 445,395.96
  4. Step 4: Simplify right side
    789,559.29x = 485,293,750,653.87
  5. Step 5: Solve for x
    x = 485,293,750,653.87/789,559.29
  6. Step 6: Final answer
    x = 614,638.77

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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.