Finding the Fourth Proportional to 728,722.00, 1,005,636.24 and 406,425.18
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Solution
The fourth proportional to 728,722.00, 1,005,636.24 and 406,425.18 is: 560,866.69
Step by Step Solution
- Step 1: Write the proportion equation
728,722.00 : 1,005,636.24 = 406,425.18 : x - Step 2: Convert to fraction form
728,722.00/1,005,636.24 = 406,425.18/x - Step 3: Cross multiply
728,722.00x = 1,005,636.24 × 406,425.18 - Step 4: Simplify right side
728,722.00x = 408,715,889,856.52 - Step 5: Solve for x
x = 408,715,889,856.52/728,722.00 - Step 6: Final answer
x = 560,866.69
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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.