Home / 1,425,997.80-2,138,917.98-479,270.76

Finding the Fourth Proportional to 1,425,997.80, 2,138,917.98 and 479,270.76

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Solution

The fourth proportional to 1,425,997.80, 2,138,917.98 and 479,270.76 is: 718,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,997.80 : 2,138,917.98 = 479,270.76 : x
  2. Step 2: Convert to fraction form
    1,425,997.80/2,138,917.98 = 479,270.76/x
  3. Step 3: Cross multiply
    1,425,997.80x = 2,138,917.98 × 479,270.76
  4. Step 4: Simplify right side
    1,425,997.80x = 1,025,120,845,852.26
  5. Step 5: Solve for x
    x = 1,025,120,845,852.26/1,425,997.80
  6. Step 6: Final answer
    x = 718,879.68

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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.