Finding the Fourth Proportional to 857,412.18, 1,286,385.96 and 516,229.62
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Solution
The fourth proportional to 857,412.18, 1,286,385.96 and 516,229.62 is: 774,505.60
Step by Step Solution
- Step 1: Write the proportion equation
857,412.18 : 1,286,385.96 = 516,229.62 : x - Step 2: Convert to fraction form
857,412.18/1,286,385.96 = 516,229.62/x - Step 3: Cross multiply
857,412.18x = 1,286,385.96 × 516,229.62 - Step 4: Simplify right side
857,412.18x = 664,070,535,304.14 - Step 5: Solve for x
x = 664,070,535,304.14/857,412.18 - Step 6: Final answer
x = 774,505.60
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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.