Finding the Fourth Proportional to 856,129.77, 1,284,207.21 and 406,896.48
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Solution
The fourth proportional to 856,129.77, 1,284,207.21 and 406,896.48 is: 610,350.69
Step by Step Solution
- Step 1: Write the proportion equation
856,129.77 : 1,284,207.21 = 406,896.48 : x - Step 2: Convert to fraction form
856,129.77/1,284,207.21 = 406,896.48/x - Step 3: Cross multiply
856,129.77x = 1,284,207.21 × 406,896.48 - Step 4: Simplify right side
856,129.77x = 522,539,393,339.62 - Step 5: Solve for x
x = 522,539,393,339.62/856,129.77 - Step 6: Final answer
x = 610,350.69
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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.