Finding the Fourth Proportional to 646,640.21, 969,211.93 and 305,300.09
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Solution
The fourth proportional to 646,640.21, 969,211.93 and 305,300.09 is: 457,596.79
Step by Step Solution
- Step 1: Write the proportion equation
646,640.21 : 969,211.93 = 305,300.09 : x - Step 2: Convert to fraction form
646,640.21/969,211.93 = 305,300.09/x - Step 3: Cross multiply
646,640.21x = 969,211.93 × 305,300.09 - Step 4: Simplify right side
646,640.21x = 295,900,486,238.47 - Step 5: Solve for x
x = 295,900,486,238.47/646,640.21 - Step 6: Final answer
x = 457,596.79
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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.