Finding the Fourth Proportional to 3,579,374.76, 4,939,537.98 and 1,969,742.76
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Solution
The fourth proportional to 3,579,374.76, 4,939,537.98 and 1,969,742.76 is: 2,718,245.46
Step by Step Solution
- Step 1: Write the proportion equation
3,579,374.76 : 4,939,537.98 = 1,969,742.76 : x - Step 2: Convert to fraction form
3,579,374.76/4,939,537.98 = 1,969,742.76/x - Step 3: Cross multiply
3,579,374.76x = 4,939,537.98 × 1,969,742.76 - Step 4: Simplify right side
3,579,374.76x = 9,729,619,173,850.03 - Step 5: Solve for x
x = 9,729,619,173,850.03/3,579,374.76 - Step 6: Final answer
x = 2,718,245.46
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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.