Finding the Fourth Proportional to 421,137.77, 631,772.28 and 252,618.48
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Solution
The fourth proportional to 421,137.77, 631,772.28 and 252,618.48 is: 378,967.09
Step by Step Solution
- Step 1: Write the proportion equation
421,137.77 : 631,772.28 = 252,618.48 : x - Step 2: Convert to fraction form
421,137.77/631,772.28 = 252,618.48/x - Step 3: Cross multiply
421,137.77x = 631,772.28 × 252,618.48 - Step 4: Simplify right side
421,137.77x = 159,597,353,079.73 - Step 5: Solve for x
x = 159,597,353,079.73/421,137.77 - Step 6: Final answer
x = 378,967.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.