Finding the Fourth Proportional to 1,205,615.92, 1,663,470.84 and 721,997.68
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Solution
The fourth proportional to 1,205,615.92, 1,663,470.84 and 721,997.68 is: 996,189.64
Step by Step Solution
- Step 1: Write the proportion equation
1,205,615.92 : 1,663,470.84 = 721,997.68 : x - Step 2: Convert to fraction form
1,205,615.92/1,663,470.84 = 721,997.68/x - Step 3: Cross multiply
1,205,615.92x = 1,663,470.84 × 721,997.68 - Step 4: Simplify right side
1,205,615.92x = 1,201,022,087,227.65 - Step 5: Solve for x
x = 1,201,022,087,227.65/1,205,615.92 - Step 6: Final answer
x = 996,189.64
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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.