Finding the Fourth Proportional to 679.19, 936.26 and 416.75
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Solution
The fourth proportional to 679.19, 936.26 and 416.75 is: 574.49
Step by Step Solution
- Step 1: Write the proportion equation
679.19 : 936.26 = 416.75 : x - Step 2: Convert to fraction form
679.19/936.26 = 416.75/x - Step 3: Cross multiply
679.19x = 936.26 × 416.75 - Step 4: Simplify right side
679.19x = 390,186.36 - Step 5: Solve for x
x = 390,186.36/679.19 - Step 6: Final answer
x = 574.49
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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.