Home / 809,009.82-1,213,505.01-209,917.62

Finding the Fourth Proportional to 809,009.82, 1,213,505.01 and 209,917.62

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Solution

The fourth proportional to 809,009.82, 1,213,505.01 and 209,917.62 is: 314,873.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,009.82 : 1,213,505.01 = 209,917.62 : x
  2. Step 2: Convert to fraction form
    809,009.82/1,213,505.01 = 209,917.62/x
  3. Step 3: Cross multiply
    809,009.82x = 1,213,505.01 × 209,917.62
  4. Step 4: Simplify right side
    809,009.82x = 254,736,083,557.28
  5. Step 5: Solve for x
    x = 254,736,083,557.28/809,009.82
  6. Step 6: Final answer
    x = 314,873.91

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1.5x scale

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.