Finding the Fourth Proportional to 890,167.80, 1,335,122.10 and 259,015.80
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Solution
The fourth proportional to 890,167.80, 1,335,122.10 and 259,015.80 is: 388,485.99
Step by Step Solution
- Step 1: Write the proportion equation
890,167.80 : 1,335,122.10 = 259,015.80 : x - Step 2: Convert to fraction form
890,167.80/1,335,122.10 = 259,015.80/x - Step 3: Cross multiply
890,167.80x = 1,335,122.10 × 259,015.80 - Step 4: Simplify right side
890,167.80x = 345,817,718,829.18 - Step 5: Solve for x
x = 345,817,718,829.18/890,167.80 - Step 6: Final answer
x = 388,485.99
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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.