Home / 789,539.49-1,089,564.97-426,963.33

Finding the Fourth Proportional to 789,539.49, 1,089,564.97 and 426,963.33

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Solution

The fourth proportional to 789,539.49, 1,089,564.97 and 426,963.33 is: 589,209.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,539.49 : 1,089,564.97 = 426,963.33 : x
  2. Step 2: Convert to fraction form
    789,539.49/1,089,564.97 = 426,963.33/x
  3. Step 3: Cross multiply
    789,539.49x = 1,089,564.97 × 426,963.33
  4. Step 4: Simplify right side
    789,539.49x = 465,204,286,775.14
  5. Step 5: Solve for x
    x = 465,204,286,775.14/789,539.49
  6. Step 6: Final answer
    x = 589,209.65

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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.