Home / 809,902.21-1,216,101.84-685,181.29

Finding the Fourth Proportional to 809,902.21, 1,216,101.84 and 685,181.29

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Solution

The fourth proportional to 809,902.21, 1,216,101.84 and 685,181.29 is: 1,028,828.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,902.21 : 1,216,101.84 = 685,181.29 : x
  2. Step 2: Convert to fraction form
    809,902.21/1,216,101.84 = 685,181.29/x
  3. Step 3: Cross multiply
    809,902.21x = 1,216,101.84 × 685,181.29
  4. Step 4: Simplify right side
    809,902.21x = 833,250,227,502.57
  5. Step 5: Solve for x
    x = 833,250,227,502.57/809,902.21
  6. Step 6: Final answer
    x = 1,028,828.19

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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.