Home / 727,680.26-1,004,199.39-405,391.16

Finding the Fourth Proportional to 727,680.26, 1,004,199.39 and 405,391.16

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Solution

The fourth proportional to 727,680.26, 1,004,199.39 and 405,391.16 is: 559,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,680.26 : 1,004,199.39 = 405,391.16 : x
  2. Step 2: Convert to fraction form
    727,680.26/1,004,199.39 = 405,391.16/x
  3. Step 3: Cross multiply
    727,680.26x = 1,004,199.39 × 405,391.16
  4. Step 4: Simplify right side
    727,680.26x = 407,093,555,583.39
  5. Step 5: Solve for x
    x = 407,093,555,583.39/727,680.26
  6. Step 6: Final answer
    x = 559,440.15

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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.