Home / 775,622.12-1,161,027.41-419,753.48

Finding the Fourth Proportional to 775,622.12, 1,161,027.41 and 419,753.48

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Solution

The fourth proportional to 775,622.12, 1,161,027.41 and 419,753.48 is: 628,328.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,622.12 : 1,161,027.41 = 419,753.48 : x
  2. Step 2: Convert to fraction form
    775,622.12/1,161,027.41 = 419,753.48/x
  3. Step 3: Cross multiply
    775,622.12x = 1,161,027.41 × 419,753.48
  4. Step 4: Simplify right side
    775,622.12x = 487,345,287,818.98
  5. Step 5: Solve for x
    x = 487,345,287,818.98/775,622.12
  6. Step 6: Final answer
    x = 628,328.25

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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.