Finding the Fourth Proportional to 800,791.63, 1,105,092.49 and 438,215.49
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Solution
The fourth proportional to 800,791.63, 1,105,092.49 and 438,215.49 is: 604,737.40
Step by Step Solution
- Step 1: Write the proportion equation
800,791.63 : 1,105,092.49 = 438,215.49 : x - Step 2: Convert to fraction form
800,791.63/1,105,092.49 = 438,215.49/x - Step 3: Cross multiply
800,791.63x = 1,105,092.49 × 438,215.49 - Step 4: Simplify right side
800,791.63x = 484,268,647,000.67 - Step 5: Solve for x
x = 484,268,647,000.67/800,791.63 - Step 6: Final answer
x = 604,737.40
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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.