Finding the Fourth Proportional to 618,658.73, 853,759.14 and 346,787.09
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Solution
The fourth proportional to 618,658.73, 853,759.14 and 346,787.09 is: 478,571.84
Step by Step Solution
- Step 1: Write the proportion equation
618,658.73 : 853,759.14 = 346,787.09 : x - Step 2: Convert to fraction form
618,658.73/853,759.14 = 346,787.09/x - Step 3: Cross multiply
618,658.73x = 853,759.14 × 346,787.09 - Step 4: Simplify right side
618,658.73x = 296,072,647,721.50 - Step 5: Solve for x
x = 296,072,647,721.50/618,658.73 - Step 6: Final answer
x = 478,571.84
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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.