Finding the Fourth Proportional to 1,131,664.74, 1,561,423.23 and 718,051.02
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Solution
The fourth proportional to 1,131,664.74, 1,561,423.23 and 718,051.02 is: 990,736.48
Step by Step Solution
- Step 1: Write the proportion equation
1,131,664.74 : 1,561,423.23 = 718,051.02 : x - Step 2: Convert to fraction form
1,131,664.74/1,561,423.23 = 718,051.02/x - Step 3: Cross multiply
1,131,664.74x = 1,561,423.23 × 718,051.02 - Step 4: Simplify right side
1,131,664.74x = 1,121,181,542,953.19 - Step 5: Solve for x
x = 1,121,181,542,953.19/1,131,664.74 - Step 6: Final answer
x = 990,736.48
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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.