Home / 812,066.70-1,120,616.64-449,468.94

Finding the Fourth Proportional to 812,066.70, 1,120,616.64 and 449,468.94

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Solution

The fourth proportional to 812,066.70, 1,120,616.64 and 449,468.94 is: 620,247.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,066.70 : 1,120,616.64 = 449,468.94 : x
  2. Step 2: Convert to fraction form
    812,066.70/1,120,616.64 = 449,468.94/x
  3. Step 3: Cross multiply
    812,066.70x = 1,120,616.64 × 449,468.94
  4. Step 4: Simplify right side
    812,066.70x = 503,682,373,327.16
  5. Step 5: Solve for x
    x = 503,682,373,327.16/812,066.70
  6. Step 6: Final answer
    x = 620,247.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.