Home / 1,119,819.09-1,679,234.49-320,919.33

Finding the Fourth Proportional to 1,119,819.09, 1,679,234.49 and 320,919.33

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Solution

The fourth proportional to 1,119,819.09, 1,679,234.49 and 320,919.33 is: 481,237.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,819.09 : 1,679,234.49 = 320,919.33 : x
  2. Step 2: Convert to fraction form
    1,119,819.09/1,679,234.49 = 320,919.33/x
  3. Step 3: Cross multiply
    1,119,819.09x = 1,679,234.49 × 320,919.33
  4. Step 4: Simplify right side
    1,119,819.09x = 538,898,807,443.69
  5. Step 5: Solve for x
    x = 538,898,807,443.69/1,119,819.09
  6. Step 6: Final answer
    x = 481,237.38

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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.