Finding the Fourth Proportional to 1,013,989.92, 1,397,815.26 and 771,850.68
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Solution
The fourth proportional to 1,013,989.92, 1,397,815.26 and 771,850.68 is: 1,064,019.12
Step by Step Solution
- Step 1: Write the proportion equation
1,013,989.92 : 1,397,815.26 = 771,850.68 : x - Step 2: Convert to fraction form
1,013,989.92/1,397,815.26 = 771,850.68/x - Step 3: Cross multiply
1,013,989.92x = 1,397,815.26 × 771,850.68 - Step 4: Simplify right side
1,013,989.92x = 1,078,904,658,945.38 - Step 5: Solve for x
x = 1,078,904,658,945.38/1,013,989.92 - Step 6: Final answer
x = 1,064,019.12
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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.