Finding the Fourth Proportional to 874,859.14, 1,207,305.60 and 472,451.14
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Solution
The fourth proportional to 874,859.14, 1,207,305.60 and 472,451.14 is: 651,982.57
Step by Step Solution
- Step 1: Write the proportion equation
874,859.14 : 1,207,305.60 = 472,451.14 : x - Step 2: Convert to fraction form
874,859.14/1,207,305.60 = 472,451.14/x - Step 3: Cross multiply
874,859.14x = 1,207,305.60 × 472,451.14 - Step 4: Simplify right side
874,859.14x = 570,392,907,048.38 - Step 5: Solve for x
x = 570,392,907,048.38/874,859.14 - Step 6: Final answer
x = 651,982.57
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Double scale
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1.5x scale
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.