Finding the Fourth Proportional to 857,968.20, 1,286,952.30 and 543,817.80
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Solution
The fourth proportional to 857,968.20, 1,286,952.30 and 543,817.80 is: 815,726.70
Step by Step Solution
- Step 1: Write the proportion equation
857,968.20 : 1,286,952.30 = 543,817.80 : x - Step 2: Convert to fraction form
857,968.20/1,286,952.30 = 543,817.80/x - Step 3: Cross multiply
857,968.20x = 1,286,952.30 × 543,817.80 - Step 4: Simplify right side
857,968.20x = 699,867,568,490.94 - Step 5: Solve for x
x = 699,867,568,490.94/857,968.20 - Step 6: Final answer
x = 815,726.70
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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.