Finding the Fourth Proportional to 674,161.44, 930,326.40 and 387,674.94
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Solution
The fourth proportional to 674,161.44, 930,326.40 and 387,674.94 is: 534,981.99
Step by Step Solution
- Step 1: Write the proportion equation
674,161.44 : 930,326.40 = 387,674.94 : x - Step 2: Convert to fraction form
674,161.44/930,326.40 = 387,674.94/x - Step 3: Cross multiply
674,161.44x = 930,326.40 × 387,674.94 - Step 4: Simplify right side
674,161.44x = 360,664,231,300.42 - Step 5: Solve for x
x = 360,664,231,300.42/674,161.44 - Step 6: Final answer
x = 534,981.99
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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.