Finding the Fourth Proportional to 1,589,172.88, 2,193,101.58 and 864,069.28
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Solution
The fourth proportional to 1,589,172.88, 2,193,101.58 and 864,069.28 is: 1,192,438.99
Step by Step Solution
- Step 1: Write the proportion equation
1,589,172.88 : 2,193,101.58 = 864,069.28 : x - Step 2: Convert to fraction form
1,589,172.88/2,193,101.58 = 864,069.28/x - Step 3: Cross multiply
1,589,172.88x = 2,193,101.58 × 864,069.28 - Step 4: Simplify right side
1,589,172.88x = 1,894,991,703,197.46 - Step 5: Solve for x
x = 1,894,991,703,197.46/1,589,172.88 - Step 6: Final answer
x = 1,192,438.99
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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.