Home / 789,646.25-1,089,845.82-445,579.71

Finding the Fourth Proportional to 789,646.25, 1,089,845.82 and 445,579.71

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Solution

The fourth proportional to 789,646.25, 1,089,845.82 and 445,579.71 is: 614,975.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,646.25 : 1,089,845.82 = 445,579.71 : x
  2. Step 2: Convert to fraction form
    789,646.25/1,089,845.82 = 445,579.71/x
  3. Step 3: Cross multiply
    789,646.25x = 1,089,845.82 × 445,579.71
  4. Step 4: Simplify right side
    789,646.25x = 485,613,184,420.31
  5. Step 5: Solve for x
    x = 485,613,184,420.31/789,646.25
  6. Step 6: Final answer
    x = 614,975.61

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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.