Finding the Fourth Proportional to 388,605.70, 582,929.36 and 122,386.95
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Solution
The fourth proportional to 388,605.70, 582,929.36 and 122,386.95 is: 183,586.98
Step by Step Solution
- Step 1: Write the proportion equation
388,605.70 : 582,929.36 = 122,386.95 : x - Step 2: Convert to fraction form
388,605.70/582,929.36 = 122,386.95/x - Step 3: Cross multiply
388,605.70x = 582,929.36 × 122,386.95 - Step 4: Simplify right side
388,605.70x = 71,342,946,435.85 - Step 5: Solve for x
x = 71,342,946,435.85/388,605.70 - Step 6: Final answer
x = 183,586.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.