Finding the Fourth Proportional to 639,593.80, 882,640.75 and 353,114.44
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Solution
The fourth proportional to 639,593.80, 882,640.75 and 353,114.44 is: 487,298.65
Step by Step Solution
- Step 1: Write the proportion equation
639,593.80 : 882,640.75 = 353,114.44 : x - Step 2: Convert to fraction form
639,593.80/882,640.75 = 353,114.44/x - Step 3: Cross multiply
639,593.80x = 882,640.75 × 353,114.44 - Step 4: Simplify right side
639,593.80x = 311,673,194,157.43 - Step 5: Solve for x
x = 311,673,194,157.43/639,593.80 - Step 6: Final answer
x = 487,298.65
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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.