Finding the Fourth Proportional to 875,185.92, 1,207,749.36 and 487,996.80
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Solution
The fourth proportional to 875,185.92, 1,207,749.36 and 487,996.80 is: 673,431.56
Step by Step Solution
- Step 1: Write the proportion equation
875,185.92 : 1,207,749.36 = 487,996.80 : x - Step 2: Convert to fraction form
875,185.92/1,207,749.36 = 487,996.80/x - Step 3: Cross multiply
875,185.92x = 1,207,749.36 × 487,996.80 - Step 4: Simplify right side
875,185.92x = 589,377,822,882.05 - Step 5: Solve for x
x = 589,377,822,882.05/875,185.92 - Step 6: Final answer
x = 673,431.56
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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.