Home / 1,321,815.45-1,982,766.29-629,232.15

Finding the Fourth Proportional to 1,321,815.45, 1,982,766.29 and 629,232.15

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Solution

The fourth proportional to 1,321,815.45, 1,982,766.29 and 629,232.15 is: 943,868.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,815.45 : 1,982,766.29 = 629,232.15 : x
  2. Step 2: Convert to fraction form
    1,321,815.45/1,982,766.29 = 629,232.15/x
  3. Step 3: Cross multiply
    1,321,815.45x = 1,982,766.29 × 629,232.15
  4. Step 4: Simplify right side
    1,321,815.45x = 1,247,620,292,458.06
  5. Step 5: Solve for x
    x = 1,247,620,292,458.06/1,321,815.45
  6. Step 6: Final answer
    x = 943,868.75

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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.