Finding the Fourth Proportional to 674,237.44, 930,475.94 and 387,757.75
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Solution
The fourth proportional to 674,237.44, 930,475.94 and 387,757.75 is: 535,121.95
Step by Step Solution
- Step 1: Write the proportion equation
674,237.44 : 930,475.94 = 387,757.75 : x - Step 2: Convert to fraction form
674,237.44/930,475.94 = 387,757.75/x - Step 3: Cross multiply
674,237.44x = 930,475.94 × 387,757.75 - Step 4: Simplify right side
674,237.44x = 360,799,256,923.54 - Step 5: Solve for x
x = 360,799,256,923.54/674,237.44 - Step 6: Final answer
x = 535,121.95
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1.5x scale
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.