Home / 809,109.60-1,213,664.40-809,109.60

Finding the Fourth Proportional to 809,109.60, 1,213,664.40 and 809,109.60

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Solution

The fourth proportional to 809,109.60, 1,213,664.40 and 809,109.60 is: 1,213,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,109.60 : 1,213,664.40 = 809,109.60 : x
  2. Step 2: Convert to fraction form
    809,109.60/1,213,664.40 = 809,109.60/x
  3. Step 3: Cross multiply
    809,109.60x = 1,213,664.40 × 809,109.60
  4. Step 4: Simplify right side
    809,109.60x = 981,987,517,218.24
  5. Step 5: Solve for x
    x = 981,987,517,218.24/809,109.60
  6. Step 6: Final answer
    x = 1,213,664.40

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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.