Finding the Fourth Proportional to 1,440,821.49, 2,161,605.74 and 766,347.96
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Solution
The fourth proportional to 1,440,821.49, 2,161,605.74 and 766,347.96 is: 1,149,720.60
Step by Step Solution
- Step 1: Write the proportion equation
1,440,821.49 : 2,161,605.74 = 766,347.96 : x - Step 2: Convert to fraction form
1,440,821.49/2,161,605.74 = 766,347.96/x - Step 3: Cross multiply
1,440,821.49x = 2,161,605.74 × 766,347.96 - Step 4: Simplify right side
1,440,821.49x = 1,656,542,151,678.76 - Step 5: Solve for x
x = 1,656,542,151,678.76/1,440,821.49 - Step 6: Final answer
x = 1,149,720.60
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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.