Home / 789,814.77-1,089,937.62-445,653.33

Finding the Fourth Proportional to 789,814.77, 1,089,937.62 and 445,653.33

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Solution

The fourth proportional to 789,814.77, 1,089,937.62 and 445,653.33 is: 614,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,814.77 : 1,089,937.62 = 445,653.33 : x
  2. Step 2: Convert to fraction form
    789,814.77/1,089,937.62 = 445,653.33/x
  3. Step 3: Cross multiply
    789,814.77x = 1,089,937.62 × 445,653.33
  4. Step 4: Simplify right side
    789,814.77x = 485,734,329,845.28
  5. Step 5: Solve for x
    x = 485,734,329,845.28/789,814.77
  6. Step 6: Final answer
    x = 614,997.78

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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.