Finding the Fourth Proportional to 1,515,517.21, 2,271,307.51 and 615,912.09
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Solution
The fourth proportional to 1,515,517.21, 2,271,307.51 and 615,912.09 is: 923,068.21
Step by Step Solution
- Step 1: Write the proportion equation
1,515,517.21 : 2,271,307.51 = 615,912.09 : x - Step 2: Convert to fraction form
1,515,517.21/2,271,307.51 = 615,912.09/x - Step 3: Cross multiply
1,515,517.21x = 2,271,307.51 × 615,912.09 - Step 4: Simplify right side
1,515,517.21x = 1,398,925,755,516.80 - Step 5: Solve for x
x = 1,398,925,755,516.80/1,515,517.21 - Step 6: Final answer
x = 923,068.21
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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.