Finding the Fourth Proportional to 415,194.55, 620,516.80 and 303,110.80
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Solution
The fourth proportional to 415,194.55, 620,516.80 and 303,110.80 is: 453,005.33
Step by Step Solution
- Step 1: Write the proportion equation
415,194.55 : 620,516.80 = 303,110.80 : x - Step 2: Convert to fraction form
415,194.55/620,516.80 = 303,110.80/x - Step 3: Cross multiply
415,194.55x = 620,516.80 × 303,110.80 - Step 4: Simplify right side
415,194.55x = 188,085,343,661.44 - Step 5: Solve for x
x = 188,085,343,661.44/415,194.55 - Step 6: Final answer
x = 453,005.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.