Finding the Fourth Proportional to 681,145.20, 1,021,717.80 and 606,349.80
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Solution
The fourth proportional to 681,145.20, 1,021,717.80 and 606,349.80 is: 909,524.70
Step by Step Solution
- Step 1: Write the proportion equation
681,145.20 : 1,021,717.80 = 606,349.80 : x - Step 2: Convert to fraction form
681,145.20/1,021,717.80 = 606,349.80/x - Step 3: Cross multiply
681,145.20x = 1,021,717.80 × 606,349.80 - Step 4: Simplify right side
681,145.20x = 619,518,383,686.44 - Step 5: Solve for x
x = 619,518,383,686.44/681,145.20 - Step 6: Final answer
x = 909,524.70
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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.