Finding the Fourth Proportional to 1,721,828.80, 2,581,821.60 and 723,428.80
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Solution
The fourth proportional to 1,721,828.80, 2,581,821.60 and 723,428.80 is: 1,084,755.99
Step by Step Solution
- Step 1: Write the proportion equation
1,721,828.80 : 2,581,821.60 = 723,428.80 : x - Step 2: Convert to fraction form
1,721,828.80/2,581,821.60 = 723,428.80/x - Step 3: Cross multiply
1,721,828.80x = 2,581,821.60 × 723,428.80 - Step 4: Simplify right side
1,721,828.80x = 1,867,764,101,902.08 - Step 5: Solve for x
x = 1,867,764,101,902.08/1,721,828.80 - Step 6: Final answer
x = 1,084,755.99
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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.