Finding the Fourth Proportional to 815,755.92, 1,125,744.34 and 453,170.44
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Solution
The fourth proportional to 815,755.92, 1,125,744.34 and 453,170.44 is: 625,375.86
Step by Step Solution
- Step 1: Write the proportion equation
815,755.92 : 1,125,744.34 = 453,170.44 : x - Step 2: Convert to fraction form
815,755.92/1,125,744.34 = 453,170.44/x - Step 3: Cross multiply
815,755.92x = 1,125,744.34 × 453,170.44 - Step 4: Simplify right side
815,755.92x = 510,154,057,885.31 - Step 5: Solve for x
x = 510,154,057,885.31/815,755.92 - Step 6: Final answer
x = 625,375.86
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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.