Finding the Fourth Proportional to 1,071,704.97, 1,478,649.87 and 689,952.78
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Solution
The fourth proportional to 1,071,704.97, 1,478,649.87 and 689,952.78 is: 951,939.78
Step by Step Solution
- Step 1: Write the proportion equation
1,071,704.97 : 1,478,649.87 = 689,952.78 : x - Step 2: Convert to fraction form
1,071,704.97/1,478,649.87 = 689,952.78/x - Step 3: Cross multiply
1,071,704.97x = 1,478,649.87 × 689,952.78 - Step 4: Simplify right side
1,071,704.97x = 1,020,198,588,453.14 - Step 5: Solve for x
x = 1,020,198,588,453.14/1,071,704.97 - Step 6: Final answer
x = 951,939.78
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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.