Finding the Fourth Proportional to 815,486.63, 1,125,385.46 and 447,979.26
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Solution
The fourth proportional to 815,486.63, 1,125,385.46 and 447,979.26 is: 618,219.02
Step by Step Solution
- Step 1: Write the proportion equation
815,486.63 : 1,125,385.46 = 447,979.26 : x - Step 2: Convert to fraction form
815,486.63/1,125,385.46 = 447,979.26/x - Step 3: Cross multiply
815,486.63x = 1,125,385.46 × 447,979.26 - Step 4: Simplify right side
815,486.63x = 504,149,345,585.56 - Step 5: Solve for x
x = 504,149,345,585.56/815,486.63 - Step 6: Final answer
x = 618,219.02
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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.