Finding the Fourth Proportional to 486,612.76, 671,428.20 and 271,719.76
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Solution
The fourth proportional to 486,612.76, 671,428.20 and 271,719.76 is: 374,918.88
Step by Step Solution
- Step 1: Write the proportion equation
486,612.76 : 671,428.20 = 271,719.76 : x - Step 2: Convert to fraction form
486,612.76/671,428.20 = 271,719.76/x - Step 3: Cross multiply
486,612.76x = 671,428.20 × 271,719.76 - Step 4: Simplify right side
486,612.76x = 182,440,309,361.23 - Step 5: Solve for x
x = 182,440,309,361.23/486,612.76 - Step 6: Final answer
x = 374,918.88
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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.