Finding the Fourth Proportional to 1,830,431.80, 2,745,647.70 and 990,623.80
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Solution
The fourth proportional to 1,830,431.80, 2,745,647.70 and 990,623.80 is: 1,485,935.70
Step by Step Solution
- Step 1: Write the proportion equation
1,830,431.80 : 2,745,647.70 = 990,623.80 : x - Step 2: Convert to fraction form
1,830,431.80/2,745,647.70 = 990,623.80/x - Step 3: Cross multiply
1,830,431.80x = 2,745,647.70 × 990,623.80 - Step 4: Simplify right side
1,830,431.80x = 2,719,903,958,035.26 - Step 5: Solve for x
x = 2,719,903,958,035.26/1,830,431.80 - Step 6: Final answer
x = 1,485,935.70
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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.