Home / 775,623.12-1,161,028.90-419,754.48

Finding the Fourth Proportional to 775,623.12, 1,161,028.90 and 419,754.48

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Solution

The fourth proportional to 775,623.12, 1,161,028.90 and 419,754.48 is: 628,329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,623.12 : 1,161,028.90 = 419,754.48 : x
  2. Step 2: Convert to fraction form
    775,623.12/1,161,028.90 = 419,754.48/x
  3. Step 3: Cross multiply
    775,623.12x = 1,161,028.90 × 419,754.48
  4. Step 4: Simplify right side
    775,623.12x = 487,347,082,184.47
  5. Step 5: Solve for x
    x = 487,347,082,184.47/775,623.12
  6. Step 6: Final answer
    x = 628,329.75

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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.