Finding the Fourth Proportional to 667,795.05, 921,557.94 and 361,868.75
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Solution
The fourth proportional to 667,795.05, 921,557.94 and 361,868.75 is: 499,379.29
Step by Step Solution
- Step 1: Write the proportion equation
667,795.05 : 921,557.94 = 361,868.75 : x - Step 2: Convert to fraction form
667,795.05/921,557.94 = 361,868.75/x - Step 3: Cross multiply
667,795.05x = 921,557.94 × 361,868.75 - Step 4: Simplify right side
667,795.05x = 333,483,018,648.43 - Step 5: Solve for x
x = 333,483,018,648.43/667,795.05 - Step 6: Final answer
x = 499,379.29
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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.