Finding the Fourth Proportional to 876,635.12, 1,315,084.12 and 307,915.94
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Solution
The fourth proportional to 876,635.12, 1,315,084.12 and 307,915.94 is: 461,920.08
Step by Step Solution
- Step 1: Write the proportion equation
876,635.12 : 1,315,084.12 = 307,915.94 : x - Step 2: Convert to fraction form
876,635.12/1,315,084.12 = 307,915.94/x - Step 3: Cross multiply
876,635.12x = 1,315,084.12 × 307,915.94 - Step 4: Simplify right side
876,635.12x = 404,935,362,988.87 - Step 5: Solve for x
x = 404,935,362,988.87/876,635.12 - Step 6: Final answer
x = 461,920.08
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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.