Finding the Fourth Proportional to 500,979.36, 691,354.08 and 271,536.96
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Solution
The fourth proportional to 500,979.36, 691,354.08 and 271,536.96 is: 374,722.39
Step by Step Solution
- Step 1: Write the proportion equation
500,979.36 : 691,354.08 = 271,536.96 : x - Step 2: Convert to fraction form
500,979.36/691,354.08 = 271,536.96/x - Step 3: Cross multiply
500,979.36x = 691,354.08 × 271,536.96 - Step 4: Simplify right side
500,979.36x = 187,728,185,166.80 - Step 5: Solve for x
x = 187,728,185,166.80/500,979.36 - Step 6: Final answer
x = 374,722.39
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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.