Finding the Fourth Proportional to 1,320,958.67, 1,980,813.49 and 511,722.11
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Solution
The fourth proportional to 1,320,958.67, 1,980,813.49 and 511,722.11 is: 767,341.24
Step by Step Solution
- Step 1: Write the proportion equation
1,320,958.67 : 1,980,813.49 = 511,722.11 : x - Step 2: Convert to fraction form
1,320,958.67/1,980,813.49 = 511,722.11/x - Step 3: Cross multiply
1,320,958.67x = 1,980,813.49 × 511,722.11 - Step 4: Simplify right side
1,320,958.67x = 1,013,626,062,291.99 - Step 5: Solve for x
x = 1,013,626,062,291.99/1,320,958.67 - Step 6: Final answer
x = 767,341.24
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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.