Home / 2,115,722.63-3,173,485.43-518,201.15

Finding the Fourth Proportional to 2,115,722.63, 3,173,485.43 and 518,201.15

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Solution

The fourth proportional to 2,115,722.63, 3,173,485.43 and 518,201.15 is: 777,277.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,722.63 : 3,173,485.43 = 518,201.15 : x
  2. Step 2: Convert to fraction form
    2,115,722.63/3,173,485.43 = 518,201.15/x
  3. Step 3: Cross multiply
    2,115,722.63x = 3,173,485.43 × 518,201.15
  4. Step 4: Simplify right side
    2,115,722.63x = 1,644,503,784,762.32
  5. Step 5: Solve for x
    x = 1,644,503,784,762.32/2,115,722.63
  6. Step 6: Final answer
    x = 777,277.59

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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.