Finding the Fourth Proportional to 478,837.74, 718,468.18 and 251,078.96
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Solution
The fourth proportional to 478,837.74, 718,468.18 and 251,078.96 is: 376,729.38
Step by Step Solution
- Step 1: Write the proportion equation
478,837.74 : 718,468.18 = 251,078.96 : x - Step 2: Convert to fraction form
478,837.74/718,468.18 = 251,078.96/x - Step 3: Cross multiply
478,837.74x = 718,468.18 × 251,078.96 - Step 4: Simplify right side
478,837.74x = 180,392,243,427.49 - Step 5: Solve for x
x = 180,392,243,427.49/478,837.74 - Step 6: Final answer
x = 376,729.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.