Finding the Fourth Proportional to 828,243.97, 1,242,329.81 and 259,612.09
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Solution
The fourth proportional to 828,243.97, 1,242,329.81 and 259,612.09 is: 389,406.80
Step by Step Solution
- Step 1: Write the proportion equation
828,243.97 : 1,242,329.81 = 259,612.09 : x - Step 2: Convert to fraction form
828,243.97/1,242,329.81 = 259,612.09/x - Step 3: Cross multiply
828,243.97x = 1,242,329.81 × 259,612.09 - Step 4: Simplify right side
828,243.97x = 322,523,834,039.52 - Step 5: Solve for x
x = 322,523,834,039.52/828,243.97 - Step 6: Final answer
x = 389,406.80
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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.