Finding the Fourth Proportional to 2,845,517.32, 3,926,939.70 and 1,638,682.12
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Solution
The fourth proportional to 2,845,517.32, 3,926,939.70 and 1,638,682.12 is: 2,261,453.77
Step by Step Solution
- Step 1: Write the proportion equation
2,845,517.32 : 3,926,939.70 = 1,638,682.12 : x - Step 2: Convert to fraction form
2,845,517.32/3,926,939.70 = 1,638,682.12/x - Step 3: Cross multiply
2,845,517.32x = 3,926,939.70 × 1,638,682.12 - Step 4: Simplify right side
2,845,517.32x = 6,435,005,872,708.17 - Step 5: Solve for x
x = 6,435,005,872,708.17/2,845,517.32 - Step 6: Final answer
x = 2,261,453.77
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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.