Home / 809,700.80-1,213,773.60-629,686.40

Finding the Fourth Proportional to 809,700.80, 1,213,773.60 and 629,686.40

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Solution

The fourth proportional to 809,700.80, 1,213,773.60 and 629,686.40 is: 943,924.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,700.80 : 1,213,773.60 = 629,686.40 : x
  2. Step 2: Convert to fraction form
    809,700.80/1,213,773.60 = 629,686.40/x
  3. Step 3: Cross multiply
    809,700.80x = 1,213,773.60 × 629,686.40
  4. Step 4: Simplify right side
    809,700.80x = 764,296,728,599.04
  5. Step 5: Solve for x
    x = 764,296,728,599.04/809,700.80
  6. Step 6: Final answer
    x = 943,924.88

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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.