Finding the Fourth Proportional to 1,368,436.09, 1,888,408.53 and 756,573.09
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Solution
The fourth proportional to 1,368,436.09, 1,888,408.53 and 756,573.09 is: 1,044,052.47
Step by Step Solution
- Step 1: Write the proportion equation
1,368,436.09 : 1,888,408.53 = 756,573.09 : x - Step 2: Convert to fraction form
1,368,436.09/1,888,408.53 = 756,573.09/x - Step 3: Cross multiply
1,368,436.09x = 1,888,408.53 × 756,573.09 - Step 4: Simplify right side
1,368,436.09x = 1,428,719,076,724.46 - Step 5: Solve for x
x = 1,428,719,076,724.46/1,368,436.09 - Step 6: Final answer
x = 1,044,052.47
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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.