Finding the Fourth Proportional to 2,878,072.62, 3,971,745.27 and 1,588,915.14
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Solution
The fourth proportional to 2,878,072.62, 3,971,745.27 and 1,588,915.14 is: 2,192,705.68
Step by Step Solution
- Step 1: Write the proportion equation
2,878,072.62 : 3,971,745.27 = 1,588,915.14 : x - Step 2: Convert to fraction form
2,878,072.62/3,971,745.27 = 1,588,915.14/x - Step 3: Cross multiply
2,878,072.62x = 3,971,745.27 × 1,588,915.14 - Step 4: Simplify right side
2,878,072.62x = 6,310,766,191,726.39 - Step 5: Solve for x
x = 6,310,766,191,726.39/2,878,072.62 - Step 6: Final answer
x = 2,192,705.68
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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.