Finding the Fourth Proportional to 2,878,156.96, 3,971,845.57 and 1,588,988.09
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Solution
The fourth proportional to 2,878,156.96, 3,971,845.57 and 1,588,988.09 is: 2,192,797.47
Step by Step Solution
- Step 1: Write the proportion equation
2,878,156.96 : 3,971,845.57 = 1,588,988.09 : x - Step 2: Convert to fraction form
2,878,156.96/3,971,845.57 = 1,588,988.09/x - Step 3: Cross multiply
2,878,156.96x = 3,971,845.57 × 1,588,988.09 - Step 4: Simplify right side
2,878,156.96x = 6,311,215,306,049.26 - Step 5: Solve for x
x = 6,311,215,306,049.26/2,878,156.96 - Step 6: Final answer
x = 2,192,797.47
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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.