Finding the Fourth Proportional to 690,338.97, 1,034,012.79 and 334,608.84
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Solution
The fourth proportional to 690,338.97, 1,034,012.79 and 334,608.84 is: 501,188.31
Step by Step Solution
- Step 1: Write the proportion equation
690,338.97 : 1,034,012.79 = 334,608.84 : x - Step 2: Convert to fraction form
690,338.97/1,034,012.79 = 334,608.84/x - Step 3: Cross multiply
690,338.97x = 1,034,012.79 × 334,608.84 - Step 4: Simplify right side
690,338.97x = 345,989,820,207.06 - Step 5: Solve for x
x = 345,989,820,207.06/690,338.97 - Step 6: Final answer
x = 501,188.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.