Home / 3,378,709.19-5,068,021.51-819,945.34

Finding the Fourth Proportional to 3,378,709.19, 5,068,021.51 and 819,945.34

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Solution

The fourth proportional to 3,378,709.19, 5,068,021.51 and 819,945.34 is: 1,229,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378,709.19 : 5,068,021.51 = 819,945.34 : x
  2. Step 2: Convert to fraction form
    3,378,709.19/5,068,021.51 = 819,945.34/x
  3. Step 3: Cross multiply
    3,378,709.19x = 5,068,021.51 × 819,945.34
  4. Step 4: Simplify right side
    3,378,709.19x = 4,155,500,620,144.26
  5. Step 5: Solve for x
    x = 4,155,500,620,144.26/3,378,709.19
  6. Step 6: Final answer
    x = 1,229,907.75

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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.