Finding the Fourth Proportional to 680,286.31, 938,771.57 and 374,334.09
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Solution
The fourth proportional to 680,286.31, 938,771.57 and 374,334.09 is: 516,568.09
Step by Step Solution
- Step 1: Write the proportion equation
680,286.31 : 938,771.57 = 374,334.09 : x - Step 2: Convert to fraction form
680,286.31/938,771.57 = 374,334.09/x - Step 3: Cross multiply
680,286.31x = 938,771.57 × 374,334.09 - Step 4: Simplify right side
680,286.31x = 351,414,196,679.96 - Step 5: Solve for x
x = 351,414,196,679.96/680,286.31 - Step 6: Final answer
x = 516,568.09
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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.