Finding the Fourth Proportional to 820,770.18, 1,231,545.15 and 568,438.98
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Solution
The fourth proportional to 820,770.18, 1,231,545.15 and 568,438.98 is: 852,928.49
Step by Step Solution
- Step 1: Write the proportion equation
820,770.18 : 1,231,545.15 = 568,438.98 : x - Step 2: Convert to fraction form
820,770.18/1,231,545.15 = 568,438.98/x - Step 3: Cross multiply
820,770.18x = 1,231,545.15 × 568,438.98 - Step 4: Simplify right side
820,770.18x = 700,058,268,889.95 - Step 5: Solve for x
x = 700,058,268,889.95/820,770.18 - Step 6: Final answer
x = 852,928.49
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1.5x scale
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.