Finding the Fourth Proportional to 497,990.40, 687,227.40 and 271,639.68
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Solution
The fourth proportional to 497,990.40, 687,227.40 and 271,639.68 is: 374,863.11
Step by Step Solution
- Step 1: Write the proportion equation
497,990.40 : 687,227.40 = 271,639.68 : x - Step 2: Convert to fraction form
497,990.40/687,227.40 = 271,639.68/x - Step 3: Cross multiply
497,990.40x = 687,227.40 × 271,639.68 - Step 4: Simplify right side
497,990.40x = 186,678,231,023.23 - Step 5: Solve for x
x = 186,678,231,023.23/497,990.40 - Step 6: Final answer
x = 374,863.11
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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.