Finding the Fourth Proportional to 1,167,675.12, 1,611,391.68 and 631,131.12
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Solution
The fourth proportional to 1,167,675.12, 1,611,391.68 and 631,131.12 is: 870,960.95
Step by Step Solution
- Step 1: Write the proportion equation
1,167,675.12 : 1,611,391.68 = 631,131.12 : x - Step 2: Convert to fraction form
1,167,675.12/1,611,391.68 = 631,131.12/x - Step 3: Cross multiply
1,167,675.12x = 1,611,391.68 × 631,131.12 - Step 4: Simplify right side
1,167,675.12x = 1,016,999,435,757.08 - Step 5: Solve for x
x = 1,016,999,435,757.08/1,167,675.12 - Step 6: Final answer
x = 870,960.95
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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.