Home / 814,996.60-1,222,494.90-800,999.80

Finding the Fourth Proportional to 814,996.60, 1,222,494.90 and 800,999.80

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Solution

The fourth proportional to 814,996.60, 1,222,494.90 and 800,999.80 is: 1,201,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,996.60 : 1,222,494.90 = 800,999.80 : x
  2. Step 2: Convert to fraction form
    814,996.60/1,222,494.90 = 800,999.80/x
  3. Step 3: Cross multiply
    814,996.60x = 1,222,494.90 × 800,999.80
  4. Step 4: Simplify right side
    814,996.60x = 979,218,170,401.02
  5. Step 5: Solve for x
    x = 979,218,170,401.02/814,996.60
  6. Step 6: Final answer
    x = 1,201,499.70

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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.