Finding the Fourth Proportional to 487,743.80, 731,615.70 and 277,791.80
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Solution
The fourth proportional to 487,743.80, 731,615.70 and 277,791.80 is: 416,687.70
Step by Step Solution
- Step 1: Write the proportion equation
487,743.80 : 731,615.70 = 277,791.80 : x - Step 2: Convert to fraction form
487,743.80/731,615.70 = 277,791.80/x - Step 3: Cross multiply
487,743.80x = 731,615.70 × 277,791.80 - Step 4: Simplify right side
487,743.80x = 203,236,842,211.26 - Step 5: Solve for x
x = 203,236,842,211.26/487,743.80 - Step 6: Final answer
x = 416,687.70
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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.