Finding the Fourth Proportional to 805,979.26, 1,207,972.39 and 406,734.22
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Solution
The fourth proportional to 805,979.26, 1,207,972.39 and 406,734.22 is: 609,598.45
Step by Step Solution
- Step 1: Write the proportion equation
805,979.26 : 1,207,972.39 = 406,734.22 : x - Step 2: Convert to fraction form
805,979.26/1,207,972.39 = 406,734.22/x - Step 3: Cross multiply
805,979.26x = 1,207,972.39 × 406,734.22 - Step 4: Simplify right side
805,979.26x = 491,323,707,828.19 - Step 5: Solve for x
x = 491,323,707,828.19/805,979.26 - Step 6: Final answer
x = 609,598.45
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1.5x scale
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.