Finding the Fourth Proportional to 1,299,122.48, 1,792,716.49 and 718,312.08
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Solution
The fourth proportional to 1,299,122.48, 1,792,716.49 and 718,312.08 is: 991,230.57
Step by Step Solution
- Step 1: Write the proportion equation
1,299,122.48 : 1,792,716.49 = 718,312.08 : x - Step 2: Convert to fraction form
1,299,122.48/1,792,716.49 = 718,312.08/x - Step 3: Cross multiply
1,299,122.48x = 1,792,716.49 × 718,312.08 - Step 4: Simplify right side
1,299,122.48x = 1,287,729,907,190.64 - Step 5: Solve for x
x = 1,287,729,907,190.64/1,299,122.48 - Step 6: Final answer
x = 991,230.57
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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.