Home / 727,626.35-1,004,198.24-405,388.91

Finding the Fourth Proportional to 727,626.35, 1,004,198.24 and 405,388.91

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Solution

The fourth proportional to 727,626.35, 1,004,198.24 and 405,388.91 is: 559,477.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,626.35 : 1,004,198.24 = 405,388.91 : x
  2. Step 2: Convert to fraction form
    727,626.35/1,004,198.24 = 405,388.91/x
  3. Step 3: Cross multiply
    727,626.35x = 1,004,198.24 × 405,388.91
  4. Step 4: Simplify right side
    727,626.35x = 407,090,827,910.57
  5. Step 5: Solve for x
    x = 407,090,827,910.57/727,626.35
  6. Step 6: Final answer
    x = 559,477.85

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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.