Finding the Fourth Proportional to 868,239.81, 1,302,485.67 and 269,249.13
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Solution
The fourth proportional to 868,239.81, 1,302,485.67 and 269,249.13 is: 403,912.75
Step by Step Solution
- Step 1: Write the proportion equation
868,239.81 : 1,302,485.67 = 269,249.13 : x - Step 2: Convert to fraction form
868,239.81/1,302,485.67 = 269,249.13/x - Step 3: Cross multiply
868,239.81x = 1,302,485.67 × 269,249.13 - Step 4: Simplify right side
868,239.81x = 350,693,133,484.97 - Step 5: Solve for x
x = 350,693,133,484.97/868,239.81 - Step 6: Final answer
x = 403,912.75
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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.