Finding the Fourth Proportional to 680,640.21, 939,687.82 and 604,972.44
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Solution
The fourth proportional to 680,640.21, 939,687.82 and 604,972.44 is: 835,221.35
Step by Step Solution
- Step 1: Write the proportion equation
680,640.21 : 939,687.82 = 604,972.44 : x - Step 2: Convert to fraction form
680,640.21/939,687.82 = 604,972.44/x - Step 3: Cross multiply
680,640.21x = 939,687.82 × 604,972.44 - Step 4: Simplify right side
680,640.21x = 568,485,231,791.25 - Step 5: Solve for x
x = 568,485,231,791.25/680,640.21 - Step 6: Final answer
x = 835,221.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.