Home / 3,405,144.78-4,698,872.32-1,954,638.90

Finding the Fourth Proportional to 3,405,144.78, 4,698,872.32 and 1,954,638.90

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Solution

The fourth proportional to 3,405,144.78, 4,698,872.32 and 1,954,638.90 is: 2,697,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405,144.78 : 4,698,872.32 = 1,954,638.90 : x
  2. Step 2: Convert to fraction form
    3,405,144.78/4,698,872.32 = 1,954,638.90/x
  3. Step 3: Cross multiply
    3,405,144.78x = 4,698,872.32 × 1,954,638.90
  4. Step 4: Simplify right side
    3,405,144.78x = 9,184,598,622,805.25
  5. Step 5: Solve for x
    x = 9,184,598,622,805.25/3,405,144.78
  6. Step 6: Final answer
    x = 2,697,271.10

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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.