Home / 2,545,139.72-3,512,203.18-1,399,211.64

Finding the Fourth Proportional to 2,545,139.72, 3,512,203.18 and 1,399,211.64

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Solution

The fourth proportional to 2,545,139.72, 3,512,203.18 and 1,399,211.64 is: 1,930,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545,139.72 : 3,512,203.18 = 1,399,211.64 : x
  2. Step 2: Convert to fraction form
    2,545,139.72/3,512,203.18 = 1,399,211.64/x
  3. Step 3: Cross multiply
    2,545,139.72x = 3,512,203.18 × 1,399,211.64
  4. Step 4: Simplify right side
    2,545,139.72x = 4,914,315,571,501.01
  5. Step 5: Solve for x
    x = 4,914,315,571,501.01/2,545,139.72
  6. Step 6: Final answer
    x = 1,930,862.79

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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.