Finding the Fourth Proportional to 638,902.60, 881,968.98 and 412,658.44
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Solution
The fourth proportional to 638,902.60, 881,968.98 and 412,658.44 is: 569,651.69
Step by Step Solution
- Step 1: Write the proportion equation
638,902.60 : 881,968.98 = 412,658.44 : x - Step 2: Convert to fraction form
638,902.60/881,968.98 = 412,658.44/x - Step 3: Cross multiply
638,902.60x = 881,968.98 × 412,658.44 - Step 4: Simplify right side
638,902.60x = 363,951,943,415.19 - Step 5: Solve for x
x = 363,951,943,415.19/638,902.60 - Step 6: Final answer
x = 569,651.69
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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.