Finding the Fourth Proportional to 981,720.19, 1,472,416.26 and 271,819.99
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Solution
The fourth proportional to 981,720.19, 1,472,416.26 and 271,819.99 is: 407,684.57
Step by Step Solution
- Step 1: Write the proportion equation
981,720.19 : 1,472,416.26 = 271,819.99 : x - Step 2: Convert to fraction form
981,720.19/1,472,416.26 = 271,819.99/x - Step 3: Cross multiply
981,720.19x = 1,472,416.26 × 271,819.99 - Step 4: Simplify right side
981,720.19x = 400,232,173,069.04 - Step 5: Solve for x
x = 400,232,173,069.04/981,720.19 - Step 6: Final answer
x = 407,684.57
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.