Home / 1,088,778.78-1,631,958.03-821,673.18

Finding the Fourth Proportional to 1,088,778.78, 1,631,958.03 and 821,673.18

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Solution

The fourth proportional to 1,088,778.78, 1,631,958.03 and 821,673.18 is: 1,231,596.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088,778.78 : 1,631,958.03 = 821,673.18 : x
  2. Step 2: Convert to fraction form
    1,088,778.78/1,631,958.03 = 821,673.18/x
  3. Step 3: Cross multiply
    1,088,778.78x = 1,631,958.03 × 821,673.18
  4. Step 4: Simplify right side
    1,088,778.78x = 1,340,936,144,136.64
  5. Step 5: Solve for x
    x = 1,340,936,144,136.64/1,088,778.78
  6. Step 6: Final answer
    x = 1,231,596.51

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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.