Home / 2,256,756.78-3,114,324.30-1,289,907.84

Finding the Fourth Proportional to 2,256,756.78, 3,114,324.30 and 1,289,907.84

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Solution

The fourth proportional to 2,256,756.78, 3,114,324.30 and 1,289,907.84 is: 1,780,072.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256,756.78 : 3,114,324.30 = 1,289,907.84 : x
  2. Step 2: Convert to fraction form
    2,256,756.78/3,114,324.30 = 1,289,907.84/x
  3. Step 3: Cross multiply
    2,256,756.78x = 3,114,324.30 × 1,289,907.84
  4. Step 4: Simplify right side
    2,256,756.78x = 4,017,191,330,872.51
  5. Step 5: Solve for x
    x = 4,017,191,330,872.51/2,256,756.78
  6. Step 6: Final answer
    x = 1,780,072.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.