Finding the Fourth Proportional to 2,116,377.38, 2,920,517.84 and 1,256,915.54
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Solution
The fourth proportional to 2,116,377.38, 2,920,517.84 and 1,256,915.54 is: 1,734,494.18
Step by Step Solution
- Step 1: Write the proportion equation
2,116,377.38 : 2,920,517.84 = 1,256,915.54 : x - Step 2: Convert to fraction form
2,116,377.38/2,920,517.84 = 1,256,915.54/x - Step 3: Cross multiply
2,116,377.38x = 2,920,517.84 × 1,256,915.54 - Step 4: Simplify right side
2,116,377.38x = 3,670,844,257,943.23 - Step 5: Solve for x
x = 3,670,844,257,943.23/2,116,377.38 - Step 6: Final answer
x = 1,734,494.18
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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.