Finding the Fourth Proportional to 1,516,121.98, 2,092,431.80 and 862,906.82
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Solution
The fourth proportional to 1,516,121.98, 2,092,431.80 and 862,906.82 is: 1,190,915.83
Step by Step Solution
- Step 1: Write the proportion equation
1,516,121.98 : 2,092,431.80 = 862,906.82 : x - Step 2: Convert to fraction form
1,516,121.98/2,092,431.80 = 862,906.82/x - Step 3: Cross multiply
1,516,121.98x = 2,092,431.80 × 862,906.82 - Step 4: Simplify right side
1,516,121.98x = 1,805,573,670,604.88 - Step 5: Solve for x
x = 1,805,573,670,604.88/1,516,121.98 - Step 6: Final answer
x = 1,190,915.83
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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.