Finding the Fourth Proportional to 3,678,433.80, 5,517,586.28 and 1,655,245.76
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Solution
The fourth proportional to 3,678,433.80, 5,517,586.28 and 1,655,245.76 is: 2,482,839.65
Step by Step Solution
- Step 1: Write the proportion equation
3,678,433.80 : 5,517,586.28 = 1,655,245.76 : x - Step 2: Convert to fraction form
3,678,433.80/5,517,586.28 = 1,655,245.76/x - Step 3: Cross multiply
3,678,433.80x = 5,517,586.28 × 1,655,245.76 - Step 4: Simplify right side
3,678,433.80x = 9,132,961,295,404.17 - Step 5: Solve for x
x = 9,132,961,295,404.17/3,678,433.80 - Step 6: Final answer
x = 2,482,839.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.