Finding the Fourth Proportional to 392,728.34, 541,933.05 and 220,636.96
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Solution
The fourth proportional to 392,728.34, 541,933.05 and 220,636.96 is: 304,460.99
Step by Step Solution
- Step 1: Write the proportion equation
392,728.34 : 541,933.05 = 220,636.96 : x - Step 2: Convert to fraction form
392,728.34/541,933.05 = 220,636.96/x - Step 3: Cross multiply
392,728.34x = 541,933.05 × 220,636.96 - Step 4: Simplify right side
392,728.34x = 119,570,457,965.86 - Step 5: Solve for x
x = 119,570,457,965.86/392,728.34 - Step 6: Final answer
x = 304,460.99
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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.