Home / 419,780.14-579,078.34-266,556.18

Finding the Fourth Proportional to 419,780.14, 579,078.34 and 266,556.18

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Solution

The fourth proportional to 419,780.14, 579,078.34 and 266,556.18 is: 367,708.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,780.14 : 579,078.34 = 266,556.18 : x
  2. Step 2: Convert to fraction form
    419,780.14/579,078.34 = 266,556.18/x
  3. Step 3: Cross multiply
    419,780.14x = 579,078.34 × 266,556.18
  4. Step 4: Simplify right side
    419,780.14x = 154,356,910,231.14
  5. Step 5: Solve for x
    x = 154,356,910,231.14/419,780.14
  6. Step 6: Final answer
    x = 367,708.94

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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.