Finding the Fourth Proportional to 1,642,633.39, 2,266,810.19 and 917,491.42
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Solution
The fourth proportional to 1,642,633.39, 2,266,810.19 and 917,491.42 is: 1,266,124.82
Step by Step Solution
- Step 1: Write the proportion equation
1,642,633.39 : 2,266,810.19 = 917,491.42 : x - Step 2: Convert to fraction form
1,642,633.39/2,266,810.19 = 917,491.42/x - Step 3: Cross multiply
1,642,633.39x = 2,266,810.19 × 917,491.42 - Step 4: Simplify right side
1,642,633.39x = 2,079,778,891,053.25 - Step 5: Solve for x
x = 2,079,778,891,053.25/1,642,633.39 - Step 6: Final answer
x = 1,266,124.82
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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.