Finding the Fourth Proportional to 3,207,583.76, 4,426,463.96 and 1,918,424.08
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Solution
The fourth proportional to 3,207,583.76, 4,426,463.96 and 1,918,424.08 is: 2,647,424.26
Step by Step Solution
- Step 1: Write the proportion equation
3,207,583.76 : 4,426,463.96 = 1,918,424.08 : x - Step 2: Convert to fraction form
3,207,583.76/4,426,463.96 = 1,918,424.08/x - Step 3: Cross multiply
3,207,583.76x = 4,426,463.96 × 1,918,424.08 - Step 4: Simplify right side
3,207,583.76x = 8,491,835,050,116.16 - Step 5: Solve for x
x = 8,491,835,050,116.16/3,207,583.76 - Step 6: Final answer
x = 2,647,424.26
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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.