Home / 1,119,819.10-1,679,234.48-320,919.34

Finding the Fourth Proportional to 1,119,819.10, 1,679,234.48 and 320,919.34

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Solution

The fourth proportional to 1,119,819.10, 1,679,234.48 and 320,919.34 is: 481,237.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,819.10 : 1,679,234.48 = 320,919.34 : x
  2. Step 2: Convert to fraction form
    1,119,819.10/1,679,234.48 = 320,919.34/x
  3. Step 3: Cross multiply
    1,119,819.10x = 1,679,234.48 × 320,919.34
  4. Step 4: Simplify right side
    1,119,819.10x = 538,898,821,026.84
  5. Step 5: Solve for x
    x = 538,898,821,026.84/1,119,819.10
  6. Step 6: Final answer
    x = 481,237.39

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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.