Finding the Fourth Proportional to 728,794.68, 1,005,733.98 and 406,504.48
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Solution
The fourth proportional to 728,794.68, 1,005,733.98 and 406,504.48 is: 560,974.69
Step by Step Solution
- Step 1: Write the proportion equation
728,794.68 : 1,005,733.98 = 406,504.48 : x - Step 2: Convert to fraction form
728,794.68/1,005,733.98 = 406,504.48/x - Step 3: Cross multiply
728,794.68x = 1,005,733.98 × 406,504.48 - Step 4: Simplify right side
728,794.68x = 408,835,368,558.23 - Step 5: Solve for x
x = 408,835,368,558.23/728,794.68 - Step 6: Final answer
x = 560,974.69
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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.