Finding the Fourth Proportional to 722,839.26, 997,506.20 and 396,149.75
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Solution
The fourth proportional to 722,839.26, 997,506.20 and 396,149.75 is: 546,680.09
Step by Step Solution
- Step 1: Write the proportion equation
722,839.26 : 997,506.20 = 396,149.75 : x - Step 2: Convert to fraction form
722,839.26/997,506.20 = 396,149.75/x - Step 3: Cross multiply
722,839.26x = 997,506.20 × 396,149.75 - Step 4: Simplify right side
722,839.26x = 395,161,835,237.59 - Step 5: Solve for x
x = 395,161,835,237.59/722,839.26 - Step 6: Final answer
x = 546,680.09
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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.