Finding the Fourth Proportional to 680,602.66, 1,021,534.84 and 343,879.96
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Solution
The fourth proportional to 680,602.66, 1,021,534.84 and 343,879.96 is: 516,138.68
Step by Step Solution
- Step 1: Write the proportion equation
680,602.66 : 1,021,534.84 = 343,879.96 : x - Step 2: Convert to fraction form
680,602.66/1,021,534.84 = 343,879.96/x - Step 3: Cross multiply
680,602.66x = 1,021,534.84 × 343,879.96 - Step 4: Simplify right side
680,602.66x = 351,285,359,917.81 - Step 5: Solve for x
x = 351,285,359,917.81/680,602.66 - Step 6: Final answer
x = 516,138.68
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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.