Finding the Fourth Proportional to 478,877.77, 718,528.39 and 251,118.97
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Solution
The fourth proportional to 478,877.77, 718,528.39 and 251,118.97 is: 376,789.48
Step by Step Solution
- Step 1: Write the proportion equation
478,877.77 : 718,528.39 = 251,118.97 : x - Step 2: Convert to fraction form
478,877.77/718,528.39 = 251,118.97/x - Step 3: Cross multiply
478,877.77x = 718,528.39 × 251,118.97 - Step 4: Simplify right side
478,877.77x = 180,436,106,788.44 - Step 5: Solve for x
x = 180,436,106,788.44/478,877.77 - Step 6: Final answer
x = 376,789.48
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1.5x scale
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.