Finding the Fourth Proportional to 413,637.30, 620,455.96 and 271,919.70
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Solution
The fourth proportional to 413,637.30, 620,455.96 and 271,919.70 is: 407,879.56
Step by Step Solution
- Step 1: Write the proportion equation
413,637.30 : 620,455.96 = 271,919.70 : x - Step 2: Convert to fraction form
413,637.30/620,455.96 = 271,919.70/x - Step 3: Cross multiply
413,637.30x = 620,455.96 × 271,919.70 - Step 4: Simplify right side
413,637.30x = 168,714,198,506.41 - Step 5: Solve for x
x = 168,714,198,506.41/413,637.30 - Step 6: Final answer
x = 407,879.56
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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.