Finding the Fourth Proportional to 851,201.22, 1,276,828.56 and 318,620.55
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Solution
The fourth proportional to 851,201.22, 1,276,828.56 and 318,620.55 is: 477,940.83
Step by Step Solution
- Step 1: Write the proportion equation
851,201.22 : 1,276,828.56 = 318,620.55 : x - Step 2: Convert to fraction form
851,201.22/1,276,828.56 = 318,620.55/x - Step 3: Cross multiply
851,201.22x = 1,276,828.56 × 318,620.55 - Step 4: Simplify right side
851,201.22x = 406,823,818,042.91 - Step 5: Solve for x
x = 406,823,818,042.91/851,201.22 - Step 6: Final answer
x = 477,940.83
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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.