Home / 783,873.21-1,081,940.99-481,892.25

Finding the Fourth Proportional to 783,873.21, 1,081,940.99 and 481,892.25

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Solution

The fourth proportional to 783,873.21, 1,081,940.99 and 481,892.25 is: 665,131.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,873.21 : 1,081,940.99 = 481,892.25 : x
  2. Step 2: Convert to fraction form
    783,873.21/1,081,940.99 = 481,892.25/x
  3. Step 3: Cross multiply
    783,873.21x = 1,081,940.99 × 481,892.25
  4. Step 4: Simplify right side
    783,873.21x = 521,378,975,628.87
  5. Step 5: Solve for x
    x = 521,378,975,628.87/783,873.21
  6. Step 6: Final answer
    x = 665,131.77

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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.