Finding the Fourth Proportional to 498,083.49, 687,362.85 and 271,728.99
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Solution
The fourth proportional to 498,083.49, 687,362.85 and 271,728.99 is: 374,990.17
Step by Step Solution
- Step 1: Write the proportion equation
498,083.49 : 687,362.85 = 271,728.99 : x - Step 2: Convert to fraction form
498,083.49/687,362.85 = 271,728.99/x - Step 3: Cross multiply
498,083.49x = 687,362.85 × 271,728.99 - Step 4: Simplify right side
498,083.49x = 186,776,412,994.02 - Step 5: Solve for x
x = 186,776,412,994.02/498,083.49 - Step 6: Final answer
x = 374,990.17
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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.