Finding the Fourth Proportional to 874,864.97, 1,207,313.66 and 472,456.97
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Solution
The fourth proportional to 874,864.97, 1,207,313.66 and 472,456.97 is: 651,990.62
Step by Step Solution
- Step 1: Write the proportion equation
874,864.97 : 1,207,313.66 = 472,456.97 : x - Step 2: Convert to fraction form
874,864.97/1,207,313.66 = 472,456.97/x - Step 3: Cross multiply
874,864.97x = 1,207,313.66 × 472,456.97 - Step 4: Simplify right side
874,864.97x = 570,403,750,657.64 - Step 5: Solve for x
x = 570,403,750,657.64/874,864.97 - Step 6: Final answer
x = 651,990.62
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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.