Home / 885,412.22-1,321,212.57-789,986.42

Finding the Fourth Proportional to 885,412.22, 1,321,212.57 and 789,986.42

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Solution

The fourth proportional to 885,412.22, 1,321,212.57 and 789,986.42 is: 1,178,818.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,412.22 : 1,321,212.57 = 789,986.42 : x
  2. Step 2: Convert to fraction form
    885,412.22/1,321,212.57 = 789,986.42/x
  3. Step 3: Cross multiply
    885,412.22x = 1,321,212.57 × 789,986.42
  4. Step 4: Simplify right side
    885,412.22x = 1,043,739,983,619.33
  5. Step 5: Solve for x
    x = 1,043,739,983,619.33/885,412.22
  6. Step 6: Final answer
    x = 1,178,818.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.