Home / 379,719.54-523,766.07-243,537.78

Finding the Fourth Proportional to 379,719.54, 523,766.07 and 243,537.78

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Solution

The fourth proportional to 379,719.54, 523,766.07 and 243,537.78 is: 335,923.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,719.54 : 523,766.07 = 243,537.78 : x
  2. Step 2: Convert to fraction form
    379,719.54/523,766.07 = 243,537.78/x
  3. Step 3: Cross multiply
    379,719.54x = 523,766.07 × 243,537.78
  4. Step 4: Simplify right side
    379,719.54x = 127,556,825,927.13
  5. Step 5: Solve for x
    x = 127,556,825,927.13/379,719.54
  6. Step 6: Final answer
    x = 335,923.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.