Finding the Fourth Proportional to 728,764.52, 1,005,696.79 and 406,495.49
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Solution
The fourth proportional to 728,764.52, 1,005,696.79 and 406,495.49 is: 560,964.75
Step by Step Solution
- Step 1: Write the proportion equation
728,764.52 : 1,005,696.79 = 406,495.49 : x - Step 2: Convert to fraction form
728,764.52/1,005,696.79 = 406,495.49/x - Step 3: Cross multiply
728,764.52x = 1,005,696.79 × 406,495.49 - Step 4: Simplify right side
728,764.52x = 408,811,203,397.75 - Step 5: Solve for x
x = 408,811,203,397.75/728,764.52 - Step 6: Final answer
x = 560,964.75
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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.