Finding the Fourth Proportional to 500,782.10, 691,079.99 and 271,341.87
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Solution
The fourth proportional to 500,782.10, 691,079.99 and 271,341.87 is: 374,452.15
Step by Step Solution
- Step 1: Write the proportion equation
500,782.10 : 691,079.99 = 271,341.87 : x - Step 2: Convert to fraction form
500,782.10/691,079.99 = 271,341.87/x - Step 3: Cross multiply
500,782.10x = 691,079.99 × 271,341.87 - Step 4: Simplify right side
500,782.10x = 187,518,932,857.92 - Step 5: Solve for x
x = 187,518,932,857.92/500,782.10 - Step 6: Final answer
x = 374,452.15
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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.