Finding the Fourth Proportional to 871,382.15, 1,307,294.97 and 511,857.03
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Solution
The fourth proportional to 871,382.15, 1,307,294.97 and 511,857.03 is: 767,915.80
Step by Step Solution
- Step 1: Write the proportion equation
871,382.15 : 1,307,294.97 = 511,857.03 : x - Step 2: Convert to fraction form
871,382.15/1,307,294.97 = 511,857.03/x - Step 3: Cross multiply
871,382.15x = 1,307,294.97 × 511,857.03 - Step 4: Simplify right side
871,382.15x = 669,148,120,678.14 - Step 5: Solve for x
x = 669,148,120,678.14/871,382.15 - Step 6: Final answer
x = 767,915.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.