Finding the Fourth Proportional to 633,901.21, 874,744.01 and 347,400.97
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Solution
The fourth proportional to 633,901.21, 874,744.01 and 347,400.97 is: 479,391.60
Step by Step Solution
- Step 1: Write the proportion equation
633,901.21 : 874,744.01 = 347,400.97 : x - Step 2: Convert to fraction form
633,901.21/874,744.01 = 347,400.97/x - Step 3: Cross multiply
633,901.21x = 874,744.01 × 347,400.97 - Step 4: Simplify right side
633,901.21x = 303,886,914,954.58 - Step 5: Solve for x
x = 303,886,914,954.58/633,901.21 - Step 6: Final answer
x = 479,391.60
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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.