Home / 819,289.20-1,229,711.40-504,361.20

Finding the Fourth Proportional to 819,289.20, 1,229,711.40 and 504,361.20

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Solution

The fourth proportional to 819,289.20, 1,229,711.40 and 504,361.20 is: 757,020.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,289.20 : 1,229,711.40 = 504,361.20 : x
  2. Step 2: Convert to fraction form
    819,289.20/1,229,711.40 = 504,361.20/x
  3. Step 3: Cross multiply
    819,289.20x = 1,229,711.40 × 504,361.20
  4. Step 4: Simplify right side
    819,289.20x = 620,218,717,357.68
  5. Step 5: Solve for x
    x = 620,218,717,357.68/819,289.20
  6. Step 6: Final answer
    x = 757,020.50

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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.