Finding the Fourth Proportional to 829,969.63, 1,244,998.60 and 261,395.19
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Solution
The fourth proportional to 829,969.63, 1,244,998.60 and 261,395.19 is: 392,106.69
Step by Step Solution
- Step 1: Write the proportion equation
829,969.63 : 1,244,998.60 = 261,395.19 : x - Step 2: Convert to fraction form
829,969.63/1,244,998.60 = 261,395.19/x - Step 3: Cross multiply
829,969.63x = 1,244,998.60 × 261,395.19 - Step 4: Simplify right side
829,969.63x = 325,436,639,371.74 - Step 5: Solve for x
x = 325,436,639,371.74/829,969.63 - Step 6: Final answer
x = 392,106.69
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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.