Home / 1,213,143.56-1,819,557.21-360,198.05

Finding the Fourth Proportional to 1,213,143.56, 1,819,557.21 and 360,198.05

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Solution

The fourth proportional to 1,213,143.56, 1,819,557.21 and 360,198.05 is: 540,250.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,143.56 : 1,819,557.21 = 360,198.05 : x
  2. Step 2: Convert to fraction form
    1,213,143.56/1,819,557.21 = 360,198.05/x
  3. Step 3: Cross multiply
    1,213,143.56x = 1,819,557.21 × 360,198.05
  4. Step 4: Simplify right side
    1,213,143.56x = 655,400,958,905.44
  5. Step 5: Solve for x
    x = 655,400,958,905.44/1,213,143.56
  6. Step 6: Final answer
    x = 540,250.13

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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.