Home / 815,160.40-1,222,254.60-499,843.60

Finding the Fourth Proportional to 815,160.40, 1,222,254.60 and 499,843.60

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Solution

The fourth proportional to 815,160.40, 1,222,254.60 and 499,843.60 is: 749,467.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,160.40 : 1,222,254.60 = 499,843.60 : x
  2. Step 2: Convert to fraction form
    815,160.40/1,222,254.60 = 499,843.60/x
  3. Step 3: Cross multiply
    815,160.40x = 1,222,254.60 × 499,843.60
  4. Step 4: Simplify right side
    815,160.40x = 610,936,139,380.56
  5. Step 5: Solve for x
    x = 610,936,139,380.56/815,160.40
  6. Step 6: Final answer
    x = 749,467.39

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1.5x scale

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.