Home / 727,855.21-1,004,426.62-405,558.37

Finding the Fourth Proportional to 727,855.21, 1,004,426.62 and 405,558.37

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Solution

The fourth proportional to 727,855.21, 1,004,426.62 and 405,558.37 is: 559,662.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,855.21 : 1,004,426.62 = 405,558.37 : x
  2. Step 2: Convert to fraction form
    727,855.21/1,004,426.62 = 405,558.37/x
  3. Step 3: Cross multiply
    727,855.21x = 1,004,426.62 × 405,558.37
  4. Step 4: Simplify right side
    727,855.21x = 407,353,622,791.81
  5. Step 5: Solve for x
    x = 407,353,622,791.81/727,855.21
  6. Step 6: Final answer
    x = 559,662.99

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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.