Finding the Fourth Proportional to 490,518.96, 676,976.28 and 275,668.08
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Solution
The fourth proportional to 490,518.96, 676,976.28 and 275,668.08 is: 380,455.73
Step by Step Solution
- Step 1: Write the proportion equation
490,518.96 : 676,976.28 = 275,668.08 : x - Step 2: Convert to fraction form
490,518.96/676,976.28 = 275,668.08/x - Step 3: Cross multiply
490,518.96x = 676,976.28 × 275,668.08 - Step 4: Simplify right side
490,518.96x = 186,620,751,313.14 - Step 5: Solve for x
x = 186,620,751,313.14/490,518.96 - Step 6: Final answer
x = 380,455.73
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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.