Finding the Fourth Proportional to 1,204,657.65, 1,662,479.69 and 721,129.23
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Solution
The fourth proportional to 1,204,657.65, 1,662,479.69 and 721,129.23 is: 995,189.54
Step by Step Solution
- Step 1: Write the proportion equation
1,204,657.65 : 1,662,479.69 = 721,129.23 : x - Step 2: Convert to fraction form
1,204,657.65/1,662,479.69 = 721,129.23/x - Step 3: Cross multiply
1,204,657.65x = 1,662,479.69 × 721,129.23 - Step 4: Simplify right side
1,204,657.65x = 1,198,862,695,134.69 - Step 5: Solve for x
x = 1,198,862,695,134.69/1,204,657.65 - Step 6: Final answer
x = 995,189.54
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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.