Home / 889,735.25-1,334,327.09-321,042.80

Finding the Fourth Proportional to 889,735.25, 1,334,327.09 and 321,042.80

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Solution

The fourth proportional to 889,735.25, 1,334,327.09 and 321,042.80 is: 481,464.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,735.25 : 1,334,327.09 = 321,042.80 : x
  2. Step 2: Convert to fraction form
    889,735.25/1,334,327.09 = 321,042.80/x
  3. Step 3: Cross multiply
    889,735.25x = 1,334,327.09 × 321,042.80
  4. Step 4: Simplify right side
    889,735.25x = 428,376,106,820.06
  5. Step 5: Solve for x
    x = 428,376,106,820.06/889,735.25
  6. Step 6: Final answer
    x = 481,464.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.