Finding the Fourth Proportional to 890,069.86, 1,335,186.87 and 291,034.09
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Solution
The fourth proportional to 890,069.86, 1,335,186.87 and 291,034.09 is: 436,577.97
Step by Step Solution
- Step 1: Write the proportion equation
890,069.86 : 1,335,186.87 = 291,034.09 : x - Step 2: Convert to fraction form
890,069.86/1,335,186.87 = 291,034.09/x - Step 3: Cross multiply
890,069.86x = 1,335,186.87 × 291,034.09 - Step 4: Simplify right side
890,069.86x = 388,584,895,690.40 - Step 5: Solve for x
x = 388,584,895,690.40/890,069.86 - Step 6: Final answer
x = 436,577.97
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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.