Finding the Fourth Proportional to 981,571.17, 1,472,389.57 and 271,539.75
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Solution
The fourth proportional to 981,571.17, 1,472,389.57 and 271,539.75 is: 407,318.71
Step by Step Solution
- Step 1: Write the proportion equation
981,571.17 : 1,472,389.57 = 271,539.75 : x - Step 2: Convert to fraction form
981,571.17/1,472,389.57 = 271,539.75/x - Step 3: Cross multiply
981,571.17x = 1,472,389.57 × 271,539.75 - Step 4: Simplify right side
981,571.17x = 399,812,301,601.29 - Step 5: Solve for x
x = 399,812,301,601.29/981,571.17 - Step 6: Final answer
x = 407,318.71
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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.