Finding the Fourth Proportional to 728,163.26, 1,092,245.66 and 393,332.88
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Solution
The fourth proportional to 728,163.26, 1,092,245.66 and 393,332.88 is: 589,999.74
Step by Step Solution
- Step 1: Write the proportion equation
728,163.26 : 1,092,245.66 = 393,332.88 : x - Step 2: Convert to fraction form
728,163.26/1,092,245.66 = 393,332.88/x - Step 3: Cross multiply
728,163.26x = 1,092,245.66 × 393,332.88 - Step 4: Simplify right side
728,163.26x = 429,616,129,148.64 - Step 5: Solve for x
x = 429,616,129,148.64/728,163.26 - Step 6: Final answer
x = 589,999.74
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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.