Finding the Fourth Proportional to 404,911.49, 607,735.58 and 215,531.06
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Solution
The fourth proportional to 404,911.49, 607,735.58 and 215,531.06 is: 323,492.65
Step by Step Solution
- Step 1: Write the proportion equation
404,911.49 : 607,735.58 = 215,531.06 : x - Step 2: Convert to fraction form
404,911.49/607,735.58 = 215,531.06/x - Step 3: Cross multiply
404,911.49x = 607,735.58 × 215,531.06 - Step 4: Simplify right side
404,911.49x = 130,985,889,640.78 - Step 5: Solve for x
x = 130,985,889,640.78/404,911.49 - Step 6: Final answer
x = 323,492.65
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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.