Finding the Fourth Proportional to 857,427.18, 1,286,408.46 and 516,244.62
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Solution
The fourth proportional to 857,427.18, 1,286,408.46 and 516,244.62 is: 774,528.10
Step by Step Solution
- Step 1: Write the proportion equation
857,427.18 : 1,286,408.46 = 516,244.62 : x - Step 2: Convert to fraction form
857,427.18/1,286,408.46 = 516,244.62/x - Step 3: Cross multiply
857,427.18x = 1,286,408.46 × 516,244.62 - Step 4: Simplify right side
857,427.18x = 664,101,446,597.49 - Step 5: Solve for x
x = 664,101,446,597.49/857,427.18 - Step 6: Final answer
x = 774,528.10
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.