Finding the Fourth Proportional to 816,877.26, 1,127,255.79 and 449,331.06
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Solution
The fourth proportional to 816,877.26, 1,127,255.79 and 449,331.06 is: 620,057.70
Step by Step Solution
- Step 1: Write the proportion equation
816,877.26 : 1,127,255.79 = 449,331.06 : x - Step 2: Convert to fraction form
816,877.26/1,127,255.79 = 449,331.06/x - Step 3: Cross multiply
816,877.26x = 1,127,255.79 × 449,331.06 - Step 4: Simplify right side
816,877.26x = 506,511,039,011.84 - Step 5: Solve for x
x = 506,511,039,011.84/816,877.26 - Step 6: Final answer
x = 620,057.70
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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.