Home / 2,080,469.10-3,120,703.65-1,279,152.30

Finding the Fourth Proportional to 2,080,469.10, 3,120,703.65 and 1,279,152.30

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Solution

The fourth proportional to 2,080,469.10, 3,120,703.65 and 1,279,152.30 is: 1,918,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,469.10 : 3,120,703.65 = 1,279,152.30 : x
  2. Step 2: Convert to fraction form
    2,080,469.10/3,120,703.65 = 1,279,152.30/x
  3. Step 3: Cross multiply
    2,080,469.10x = 3,120,703.65 × 1,279,152.30
  4. Step 4: Simplify right side
    2,080,469.10x = 3,991,855,251,515.90
  5. Step 5: Solve for x
    x = 3,991,855,251,515.90/2,080,469.10
  6. Step 6: Final answer
    x = 1,918,728.45

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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.