Finding the Fourth Proportional to 667,125.44, 920,615.28 and 380,640.32
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Solution
The fourth proportional to 667,125.44, 920,615.28 and 380,640.32 is: 525,273.47
Step by Step Solution
- Step 1: Write the proportion equation
667,125.44 : 920,615.28 = 380,640.32 : x - Step 2: Convert to fraction form
667,125.44/920,615.28 = 380,640.32/x - Step 3: Cross multiply
667,125.44x = 920,615.28 × 380,640.32 - Step 4: Simplify right side
667,125.44x = 350,423,294,776.09 - Step 5: Solve for x
x = 350,423,294,776.09/667,125.44 - Step 6: Final answer
x = 525,273.47
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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.