Home / 814,250.40-1,221,375.60-394,346.40

Finding the Fourth Proportional to 814,250.40, 1,221,375.60 and 394,346.40

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Solution

The fourth proportional to 814,250.40, 1,221,375.60 and 394,346.40 is: 591,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,250.40 : 1,221,375.60 = 394,346.40 : x
  2. Step 2: Convert to fraction form
    814,250.40/1,221,375.60 = 394,346.40/x
  3. Step 3: Cross multiply
    814,250.40x = 1,221,375.60 × 394,346.40
  4. Step 4: Simplify right side
    814,250.40x = 481,645,070,907.84
  5. Step 5: Solve for x
    x = 481,645,070,907.84/814,250.40
  6. Step 6: Final answer
    x = 591,519.60

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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.