Finding the Fourth Proportional to 815,771.43, 1,125,739.35 and 453,185.87
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Solution
The fourth proportional to 815,771.43, 1,125,739.35 and 453,185.87 is: 625,382.48
Step by Step Solution
- Step 1: Write the proportion equation
815,771.43 : 1,125,739.35 = 453,185.87 : x - Step 2: Convert to fraction form
815,771.43/1,125,739.35 = 453,185.87/x - Step 3: Cross multiply
815,771.43x = 1,125,739.35 × 453,185.87 - Step 4: Simplify right side
815,771.43x = 510,169,161,094.29 - Step 5: Solve for x
x = 510,169,161,094.29/815,771.43 - Step 6: Final answer
x = 625,382.48
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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.