Finding the Fourth Proportional to 3,181,428.84, 4,771,527.24 and 1,236,153.99
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Solution
The fourth proportional to 3,181,428.84, 4,771,527.24 and 1,236,153.99 is: 1,853,991.63
Step by Step Solution
- Step 1: Write the proportion equation
3,181,428.84 : 4,771,527.24 = 1,236,153.99 : x - Step 2: Convert to fraction form
3,181,428.84/4,771,527.24 = 1,236,153.99/x - Step 3: Cross multiply
3,181,428.84x = 4,771,527.24 × 1,236,153.99 - Step 4: Simplify right side
3,181,428.84x = 5,898,342,436,119.69 - Step 5: Solve for x
x = 5,898,342,436,119.69/3,181,428.84 - Step 6: Final answer
x = 1,853,991.63
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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.