Finding the Fourth Proportional to 680,665.98, 1,021,630.49 and 343,943.09
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Solution
The fourth proportional to 680,665.98, 1,021,630.49 and 343,943.09 is: 516,233.73
Step by Step Solution
- Step 1: Write the proportion equation
680,665.98 : 1,021,630.49 = 343,943.09 : x - Step 2: Convert to fraction form
680,665.98/1,021,630.49 = 343,943.09/x - Step 3: Cross multiply
680,665.98x = 1,021,630.49 × 343,943.09 - Step 4: Simplify right side
680,665.98x = 351,382,740,740.95 - Step 5: Solve for x
x = 351,382,740,740.95/680,665.98 - Step 6: Final answer
x = 516,233.73
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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.