Finding the Fourth Proportional to 808,143.92, 1,115,717.04 and 718,472.24
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Solution
The fourth proportional to 808,143.92, 1,115,717.04 and 718,472.24 is: 991,917.03
Step by Step Solution
- Step 1: Write the proportion equation
808,143.92 : 1,115,717.04 = 718,472.24 : x - Step 2: Convert to fraction form
808,143.92/1,115,717.04 = 718,472.24/x - Step 3: Cross multiply
808,143.92x = 1,115,717.04 × 718,472.24 - Step 4: Simplify right side
808,143.92x = 801,611,720,934.97 - Step 5: Solve for x
x = 801,611,720,934.97/808,143.92 - Step 6: Final answer
x = 991,917.03
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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.