Finding the Fourth Proportional to 680,818.88, 1,021,379.92 and 207,541.12
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Solution
The fourth proportional to 680,818.88, 1,021,379.92 and 207,541.12 is: 311,357.89
Step by Step Solution
- Step 1: Write the proportion equation
680,818.88 : 1,021,379.92 = 207,541.12 : x - Step 2: Convert to fraction form
680,818.88/1,021,379.92 = 207,541.12/x - Step 3: Cross multiply
680,818.88x = 1,021,379.92 × 207,541.12 - Step 4: Simplify right side
680,818.88x = 211,978,332,542.31 - Step 5: Solve for x
x = 211,978,332,542.31/680,818.88 - Step 6: Final answer
x = 311,357.89
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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.