Finding the Fourth Proportional to 874,817.49, 1,207,273.72 and 512,207.42
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Solution
The fourth proportional to 874,817.49, 1,207,273.72 and 512,207.42 is: 706,861.22
Step by Step Solution
- Step 1: Write the proportion equation
874,817.49 : 1,207,273.72 = 512,207.42 : x - Step 2: Convert to fraction form
874,817.49/1,207,273.72 = 512,207.42/x - Step 3: Cross multiply
874,817.49x = 1,207,273.72 × 512,207.42 - Step 4: Simplify right side
874,817.49x = 618,374,557,355.00 - Step 5: Solve for x
x = 618,374,557,355.00/874,817.49 - Step 6: Final answer
x = 706,861.22
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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.