Finding the Fourth Proportional to 428,160.02, 639,635.91 and 277,170.26
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Solution
The fourth proportional to 428,160.02, 639,635.91 and 277,170.26 is: 414,069.60
Step by Step Solution
- Step 1: Write the proportion equation
428,160.02 : 639,635.91 = 277,170.26 : x - Step 2: Convert to fraction form
428,160.02/639,635.91 = 277,170.26/x - Step 3: Cross multiply
428,160.02x = 639,635.91 × 277,170.26 - Step 4: Simplify right side
428,160.02x = 177,288,050,094.19 - Step 5: Solve for x
x = 177,288,050,094.19/428,160.02 - Step 6: Final answer
x = 414,069.60
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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.