Finding the Fourth Proportional to 489,913.53, 676,063.29 and 275,062.65
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Solution
The fourth proportional to 489,913.53, 676,063.29 and 275,062.65 is: 379,576.70
Step by Step Solution
- Step 1: Write the proportion equation
489,913.53 : 676,063.29 = 275,062.65 : x - Step 2: Convert to fraction form
489,913.53/676,063.29 = 275,062.65/x - Step 3: Cross multiply
489,913.53x = 676,063.29 × 275,062.65 - Step 4: Simplify right side
489,913.53x = 185,959,760,115.12 - Step 5: Solve for x
x = 185,959,760,115.12/489,913.53 - Step 6: Final answer
x = 379,576.70
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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.