Finding the Fourth Proportional to 917,142.96, 1,265,659.92 and 509,245.68
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Solution
The fourth proportional to 917,142.96, 1,265,659.92 and 509,245.68 is: 702,760.50
Step by Step Solution
- Step 1: Write the proportion equation
917,142.96 : 1,265,659.92 = 509,245.68 : x - Step 2: Convert to fraction form
917,142.96/1,265,659.92 = 509,245.68/x - Step 3: Cross multiply
917,142.96x = 1,265,659.92 × 509,245.68 - Step 4: Simplify right side
917,142.96x = 644,531,846,609.15 - Step 5: Solve for x
x = 644,531,846,609.15/917,142.96 - Step 6: Final answer
x = 702,760.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.