Home / 823,921.80-1,236,611.70-486,540.60

Finding the Fourth Proportional to 823,921.80, 1,236,611.70 and 486,540.60

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Solution

The fourth proportional to 823,921.80, 1,236,611.70 and 486,540.60 is: 730,241.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,921.80 : 1,236,611.70 = 486,540.60 : x
  2. Step 2: Convert to fraction form
    823,921.80/1,236,611.70 = 486,540.60/x
  3. Step 3: Cross multiply
    823,921.80x = 1,236,611.70 × 486,540.60
  4. Step 4: Simplify right side
    823,921.80x = 601,661,798,485.02
  5. Step 5: Solve for x
    x = 601,661,798,485.02/823,921.80
  6. Step 6: Final answer
    x = 730,241.39

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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.