Finding the Fourth Proportional to 679,128.75, 937,201.32 and 377,322.75
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Solution
The fourth proportional to 679,128.75, 937,201.32 and 377,322.75 is: 520,707.42
Step by Step Solution
- Step 1: Write the proportion equation
679,128.75 : 937,201.32 = 377,322.75 : x - Step 2: Convert to fraction form
679,128.75/937,201.32 = 377,322.75/x - Step 3: Cross multiply
679,128.75x = 937,201.32 × 377,322.75 - Step 4: Simplify right side
679,128.75x = 353,627,379,366.03 - Step 5: Solve for x
x = 353,627,379,366.03/679,128.75 - Step 6: Final answer
x = 520,707.42
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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.