Finding the Fourth Proportional to 1,117,260.81, 1,542,342.47 and 715,086.09
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Solution
The fourth proportional to 1,117,260.81, 1,542,342.47 and 715,086.09 is: 987,153.25
Step by Step Solution
- Step 1: Write the proportion equation
1,117,260.81 : 1,542,342.47 = 715,086.09 : x - Step 2: Convert to fraction form
1,117,260.81/1,542,342.47 = 715,086.09/x - Step 3: Cross multiply
1,117,260.81x = 1,542,342.47 × 715,086.09 - Step 4: Simplify right side
1,117,260.81x = 1,102,907,642,737.81 - Step 5: Solve for x
x = 1,102,907,642,737.81/1,117,260.81 - Step 6: Final answer
x = 987,153.25
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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.