Finding the Fourth Proportional to 780,318.37, 1,170,555.46 and 211,708.41
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Solution
The fourth proportional to 780,318.37, 1,170,555.46 and 211,708.41 is: 317,583.75
Step by Step Solution
- Step 1: Write the proportion equation
780,318.37 : 1,170,555.46 = 211,708.41 : x - Step 2: Convert to fraction form
780,318.37/1,170,555.46 = 211,708.41/x - Step 3: Cross multiply
780,318.37x = 1,170,555.46 × 211,708.41 - Step 4: Simplify right side
780,318.37x = 247,816,434,194.88 - Step 5: Solve for x
x = 247,816,434,194.88/780,318.37 - Step 6: Final answer
x = 317,583.75
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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.