Finding the Fourth Proportional to 858,756.70, 1,288,135.05 and 699,324.40
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Solution
The fourth proportional to 858,756.70, 1,288,135.05 and 699,324.40 is: 1,048,986.60
Step by Step Solution
- Step 1: Write the proportion equation
858,756.70 : 1,288,135.05 = 699,324.40 : x - Step 2: Convert to fraction form
858,756.70/1,288,135.05 = 699,324.40/x - Step 3: Cross multiply
858,756.70x = 1,288,135.05 × 699,324.40 - Step 4: Simplify right side
858,756.70x = 900,824,270,960.22 - Step 5: Solve for x
x = 900,824,270,960.22/858,756.70 - Step 6: Final answer
x = 1,048,986.60
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.