Finding the Fourth Proportional to 874,728.68, 1,207,530.81 and 616,815.77
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Solution
The fourth proportional to 874,728.68, 1,207,530.81 and 616,815.77 is: 851,491.51
Step by Step Solution
- Step 1: Write the proportion equation
874,728.68 : 1,207,530.81 = 616,815.77 : x - Step 2: Convert to fraction form
874,728.68/1,207,530.81 = 616,815.77/x - Step 3: Cross multiply
874,728.68x = 1,207,530.81 × 616,815.77 - Step 4: Simplify right side
874,728.68x = 744,824,040,331.22 - Step 5: Solve for x
x = 744,824,040,331.22/874,728.68 - Step 6: Final answer
x = 851,491.51
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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.