Home / 3,419,720.78-5,130,993.60-1,499,638.05

Finding the Fourth Proportional to 3,419,720.78, 5,130,993.60 and 1,499,638.05

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Solution

The fourth proportional to 3,419,720.78, 5,130,993.60 and 1,499,638.05 is: 2,250,076.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419,720.78 : 5,130,993.60 = 1,499,638.05 : x
  2. Step 2: Convert to fraction form
    3,419,720.78/5,130,993.60 = 1,499,638.05/x
  3. Step 3: Cross multiply
    3,419,720.78x = 5,130,993.60 × 1,499,638.05
  4. Step 4: Simplify right side
    3,419,720.78x = 7,694,633,236,866.48
  5. Step 5: Solve for x
    x = 7,694,633,236,866.48/3,419,720.78
  6. Step 6: Final answer
    x = 2,250,076.47

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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.