Finding the Fourth Proportional to 467,696.49, 644,990.67 and 306,492.99
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Solution
The fourth proportional to 467,696.49, 644,990.67 and 306,492.99 is: 422,678.22
Step by Step Solution
- Step 1: Write the proportion equation
467,696.49 : 644,990.67 = 306,492.99 : x - Step 2: Convert to fraction form
467,696.49/644,990.67 = 306,492.99/x - Step 3: Cross multiply
467,696.49x = 644,990.67 × 306,492.99 - Step 4: Simplify right side
467,696.49x = 197,685,118,970.40 - Step 5: Solve for x
x = 197,685,118,970.40/467,696.49 - Step 6: Final answer
x = 422,678.22
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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.