Home / 1,760,997.60-2,638,434.60-812,422.80

Finding the Fourth Proportional to 1,760,997.60, 2,638,434.60 and 812,422.80

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Solution

The fourth proportional to 1,760,997.60, 2,638,434.60 and 812,422.80 is: 1,217,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760,997.60 : 2,638,434.60 = 812,422.80 : x
  2. Step 2: Convert to fraction form
    1,760,997.60/2,638,434.60 = 812,422.80/x
  3. Step 3: Cross multiply
    1,760,997.60x = 2,638,434.60 × 812,422.80
  4. Step 4: Simplify right side
    1,760,997.60x = 2,143,524,425,348.88
  5. Step 5: Solve for x
    x = 2,143,524,425,348.88/1,760,997.60
  6. Step 6: Final answer
    x = 1,217,221.66

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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.