Home / 419,564.43-578,847.03-274,453.04

Finding the Fourth Proportional to 419,564.43, 578,847.03 and 274,453.04

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Solution

The fourth proportional to 419,564.43, 578,847.03 and 274,453.04 is: 378,645.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,564.43 : 578,847.03 = 274,453.04 : x
  2. Step 2: Convert to fraction form
    419,564.43/578,847.03 = 274,453.04/x
  3. Step 3: Cross multiply
    419,564.43x = 578,847.03 × 274,453.04
  4. Step 4: Simplify right side
    419,564.43x = 158,866,327,078.47
  5. Step 5: Solve for x
    x = 158,866,327,078.47/419,564.43
  6. Step 6: Final answer
    x = 378,645.84

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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.