Home / 823,949.20-1,236,701.40-509,021.20

Finding the Fourth Proportional to 823,949.20, 1,236,701.40 and 509,021.20

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Solution

The fourth proportional to 823,949.20, 1,236,701.40 and 509,021.20 is: 764,012.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,949.20 : 1,236,701.40 = 509,021.20 : x
  2. Step 2: Convert to fraction form
    823,949.20/1,236,701.40 = 509,021.20/x
  3. Step 3: Cross multiply
    823,949.20x = 1,236,701.40 × 509,021.20
  4. Step 4: Simplify right side
    823,949.20x = 629,507,230,669.68
  5. Step 5: Solve for x
    x = 629,507,230,669.68/823,949.20
  6. Step 6: Final answer
    x = 764,012.19

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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.