Finding the Fourth Proportional to 716,468.44, 988,726.39 and 394,171.62
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Solution
The fourth proportional to 716,468.44, 988,726.39 and 394,171.62 is: 543,956.80
Step by Step Solution
- Step 1: Write the proportion equation
716,468.44 : 988,726.39 = 394,171.62 : x - Step 2: Convert to fraction form
716,468.44/988,726.39 = 394,171.62/x - Step 3: Cross multiply
716,468.44x = 988,726.39 × 394,171.62 - Step 4: Simplify right side
716,468.44x = 389,727,882,883.05 - Step 5: Solve for x
x = 389,727,882,883.05/716,468.44 - Step 6: Final answer
x = 543,956.80
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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.