Finding the Fourth Proportional to 1,490,820.91, 2,057,324.12 and 811,755.79
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Solution
The fourth proportional to 1,490,820.91, 2,057,324.12 and 811,755.79 is: 1,120,218.23
Step by Step Solution
- Step 1: Write the proportion equation
1,490,820.91 : 2,057,324.12 = 811,755.79 : x - Step 2: Convert to fraction form
1,490,820.91/2,057,324.12 = 811,755.79/x - Step 3: Cross multiply
1,490,820.91x = 2,057,324.12 × 811,755.79 - Step 4: Simplify right side
1,490,820.91x = 1,670,044,758,059.42 - Step 5: Solve for x
x = 1,670,044,758,059.42/1,490,820.91 - Step 6: Final answer
x = 1,120,218.23
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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.