Finding the Fourth Proportional to 786,176.70, 1,177,515.45 and 768,680.70
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Solution
The fourth proportional to 786,176.70, 1,177,515.45 and 768,680.70 is: 1,151,310.39
Step by Step Solution
- Step 1: Write the proportion equation
786,176.70 : 1,177,515.45 = 768,680.70 : x - Step 2: Convert to fraction form
786,176.70/1,177,515.45 = 768,680.70/x - Step 3: Cross multiply
786,176.70x = 1,177,515.45 × 768,680.70 - Step 4: Simplify right side
786,176.70x = 905,133,400,366.82 - Step 5: Solve for x
x = 905,133,400,366.82/786,176.70 - Step 6: Final answer
x = 1,151,310.39
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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.