Finding the Fourth Proportional to 674,235.18, 930,472.83 and 387,755.49
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Solution
The fourth proportional to 674,235.18, 930,472.83 and 387,755.49 is: 535,118.84
Step by Step Solution
- Step 1: Write the proportion equation
674,235.18 : 930,472.83 = 387,755.49 : x - Step 2: Convert to fraction form
674,235.18/930,472.83 = 387,755.49/x - Step 3: Cross multiply
674,235.18x = 930,472.83 × 387,755.49 - Step 4: Simplify right side
674,235.18x = 360,795,948,128.34 - Step 5: Solve for x
x = 360,795,948,128.34/674,235.18 - Step 6: Final answer
x = 535,118.84
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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.