Finding the Third Proportional to 398,372 and 857,160
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Solution
The third proportional to 398,372 and 857,160 is: 1,844,314.52
Step by Step Solution
- Step 1: Write the proportion equation
398,372 : 857,160 = 857,160 : x - Step 2: Convert to fraction form
398,372/857,160 = 857,160/x - Step 3: Cross multiply
398,372x = 857,160 × 857,160 - Step 4: Simplify right side
398,372x = 734,723,265,600 - Step 5: Solve for x
x = 734,723,265,600/398,372 - Step 6: Final answer
x = 1,844,314.52
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Why These Related Problems?
These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.