Home / 1,359,873.20-2,039,809.80-1,212,906.80

Finding the Fourth Proportional to 1,359,873.20, 2,039,809.80 and 1,212,906.80

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Solution

The fourth proportional to 1,359,873.20, 2,039,809.80 and 1,212,906.80 is: 1,819,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,873.20 : 2,039,809.80 = 1,212,906.80 : x
  2. Step 2: Convert to fraction form
    1,359,873.20/2,039,809.80 = 1,212,906.80/x
  3. Step 3: Cross multiply
    1,359,873.20x = 2,039,809.80 × 1,212,906.80
  4. Step 4: Simplify right side
    1,359,873.20x = 2,474,099,177,126.64
  5. Step 5: Solve for x
    x = 2,474,099,177,126.64/1,359,873.20
  6. Step 6: Final answer
    x = 1,819,360.20

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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.