Home / 808,383.75-1,212,570.77-209,343.39

Finding the Fourth Proportional to 808,383.75, 1,212,570.77 and 209,343.39

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Solution

The fourth proportional to 808,383.75, 1,212,570.77 and 209,343.39 is: 314,013.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,383.75 : 1,212,570.77 = 209,343.39 : x
  2. Step 2: Convert to fraction form
    808,383.75/1,212,570.77 = 209,343.39/x
  3. Step 3: Cross multiply
    808,383.75x = 1,212,570.77 × 209,343.39
  4. Step 4: Simplify right side
    808,383.75x = 253,843,674,559.99
  5. Step 5: Solve for x
    x = 253,843,674,559.99/808,383.75
  6. Step 6: Final answer
    x = 314,013.83

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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.