Finding the Fourth Proportional to 667,577.73, 921,253.47 and 361,660.09
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Solution
The fourth proportional to 667,577.73, 921,253.47 and 361,660.09 is: 499,088.87
Step by Step Solution
- Step 1: Write the proportion equation
667,577.73 : 921,253.47 = 361,660.09 : x - Step 2: Convert to fraction form
667,577.73/921,253.47 = 361,660.09/x - Step 3: Cross multiply
667,577.73x = 921,253.47 × 361,660.09 - Step 4: Simplify right side
667,577.73x = 333,180,613,992.51 - Step 5: Solve for x
x = 333,180,613,992.51/667,577.73 - Step 6: Final answer
x = 499,088.87
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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.