Home / 815,287.63-1,222,992.95-216,231.42

Finding the Fourth Proportional to 815,287.63, 1,222,992.95 and 216,231.42

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Solution

The fourth proportional to 815,287.63, 1,222,992.95 and 216,231.42 is: 324,363.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,287.63 : 1,222,992.95 = 216,231.42 : x
  2. Step 2: Convert to fraction form
    815,287.63/1,222,992.95 = 216,231.42/x
  3. Step 3: Cross multiply
    815,287.63x = 1,222,992.95 × 216,231.42
  4. Step 4: Simplify right side
    815,287.63x = 264,449,507,558.01
  5. Step 5: Solve for x
    x = 264,449,507,558.01/815,287.63
  6. Step 6: Final answer
    x = 324,363.45

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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.