Finding the Fourth Proportional to 480,212.81, 662,818.16 and 276,284.62
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Solution
The fourth proportional to 480,212.81, 662,818.16 and 276,284.62 is: 381,344.39
Step by Step Solution
- Step 1: Write the proportion equation
480,212.81 : 662,818.16 = 276,284.62 : x - Step 2: Convert to fraction form
480,212.81/662,818.16 = 276,284.62/x - Step 3: Cross multiply
480,212.81x = 662,818.16 × 276,284.62 - Step 4: Simplify right side
480,212.81x = 183,126,463,464.70 - Step 5: Solve for x
x = 183,126,463,464.70/480,212.81 - Step 6: Final answer
x = 381,344.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.