Finding the Fourth Proportional to 478,844.20, 718,266.30 and 471,845.80
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Solution
The fourth proportional to 478,844.20, 718,266.30 and 471,845.80 is: 707,768.70
Step by Step Solution
- Step 1: Write the proportion equation
478,844.20 : 718,266.30 = 471,845.80 : x - Step 2: Convert to fraction form
478,844.20/718,266.30 = 471,845.80/x - Step 3: Cross multiply
478,844.20x = 718,266.30 × 471,845.80 - Step 4: Simplify right side
478,844.20x = 338,910,936,936.54 - Step 5: Solve for x
x = 338,910,936,936.54/478,844.20 - Step 6: Final answer
x = 707,768.70
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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.