Finding the Fourth Proportional to 857,419.97, 1,183,154.31 and 494,960.58
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Solution
The fourth proportional to 857,419.97, 1,183,154.31 and 494,960.58 is: 682,996.39
Step by Step Solution
- Step 1: Write the proportion equation
857,419.97 : 1,183,154.31 = 494,960.58 : x - Step 2: Convert to fraction form
857,419.97/1,183,154.31 = 494,960.58/x - Step 3: Cross multiply
857,419.97x = 1,183,154.31 × 494,960.58 - Step 4: Simplify right side
857,419.97x = 585,614,743,507.10 - Step 5: Solve for x
x = 585,614,743,507.10/857,419.97 - Step 6: Final answer
x = 682,996.39
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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.