Finding the Fourth Proportional to 800,128.87, 1,104,197.02 and 455,957.44
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Solution
The fourth proportional to 800,128.87, 1,104,197.02 and 455,957.44 is: 629,232.19
Step by Step Solution
- Step 1: Write the proportion equation
800,128.87 : 1,104,197.02 = 455,957.44 : x - Step 2: Convert to fraction form
800,128.87/1,104,197.02 = 455,957.44/x - Step 3: Cross multiply
800,128.87x = 1,104,197.02 × 455,957.44 - Step 4: Simplify right side
800,128.87x = 503,466,842,594.44 - Step 5: Solve for x
x = 503,466,842,594.44/800,128.87 - Step 6: Final answer
x = 629,232.19
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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.