Home / 1,212,805.20-1,819,213.20-314,183.10

Finding the Fourth Proportional to 1,212,805.20, 1,819,213.20 and 314,183.10

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Solution

The fourth proportional to 1,212,805.20, 1,819,213.20 and 314,183.10 is: 471,276.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,805.20 : 1,819,213.20 = 314,183.10 : x
  2. Step 2: Convert to fraction form
    1,212,805.20/1,819,213.20 = 314,183.10/x
  3. Step 3: Cross multiply
    1,212,805.20x = 1,819,213.20 × 314,183.10
  4. Step 4: Simplify right side
    1,212,805.20x = 571,566,042,736.92
  5. Step 5: Solve for x
    x = 571,566,042,736.92/1,212,805.20
  6. Step 6: Final answer
    x = 471,276.05

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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.