Finding the Fourth Proportional to 858,755.70, 1,288,133.55 and 504,461.70
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Solution
The fourth proportional to 858,755.70, 1,288,133.55 and 504,461.70 is: 756,692.55
Step by Step Solution
- Step 1: Write the proportion equation
858,755.70 : 1,288,133.55 = 504,461.70 : x - Step 2: Convert to fraction form
858,755.70/1,288,133.55 = 504,461.70/x - Step 3: Cross multiply
858,755.70x = 1,288,133.55 × 504,461.70 - Step 4: Simplify right side
858,755.70x = 649,814,040,460.04 - Step 5: Solve for x
x = 649,814,040,460.04/858,755.70 - Step 6: Final answer
x = 756,692.55
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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.