Finding the Fourth Proportional to 890,063.86, 1,335,177.87 and 291,028.09
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Solution
The fourth proportional to 890,063.86, 1,335,177.87 and 291,028.09 is: 436,568.97
Step by Step Solution
- Step 1: Write the proportion equation
890,063.86 : 1,335,177.87 = 291,028.09 : x - Step 2: Convert to fraction form
890,063.86/1,335,177.87 = 291,028.09/x - Step 3: Cross multiply
890,063.86x = 1,335,177.87 × 291,028.09 - Step 4: Simplify right side
890,063.86x = 388,574,265,316.37 - Step 5: Solve for x
x = 388,574,265,316.37/890,063.86 - Step 6: Final answer
x = 436,568.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.