Finding the Fourth Proportional to 875,976.06, 1,313,964.09 and 211,128.06
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Solution
The fourth proportional to 875,976.06, 1,313,964.09 and 211,128.06 is: 316,692.09
Step by Step Solution
- Step 1: Write the proportion equation
875,976.06 : 1,313,964.09 = 211,128.06 : x - Step 2: Convert to fraction form
875,976.06/1,313,964.09 = 211,128.06/x - Step 3: Cross multiply
875,976.06x = 1,313,964.09 × 211,128.06 - Step 4: Simplify right side
875,976.06x = 277,414,689,231.37 - Step 5: Solve for x
x = 277,414,689,231.37/875,976.06 - Step 6: Final answer
x = 316,692.09
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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.