Finding the Fourth Proportional to 698,743.76, 964,213.35 and 392,771.48
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Solution
The fourth proportional to 698,743.76, 964,213.35 and 392,771.48 is: 541,994.83
Step by Step Solution
- Step 1: Write the proportion equation
698,743.76 : 964,213.35 = 392,771.48 : x - Step 2: Convert to fraction form
698,743.76/964,213.35 = 392,771.48/x - Step 3: Cross multiply
698,743.76x = 964,213.35 × 392,771.48 - Step 4: Simplify right side
698,743.76x = 378,715,504,515.26 - Step 5: Solve for x
x = 378,715,504,515.26/698,743.76 - Step 6: Final answer
x = 541,994.83
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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.