Finding the Fourth Proportional to 1,213,170.51, 1,674,163.76 and 669,310.70
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Solution
The fourth proportional to 1,213,170.51, 1,674,163.76 and 669,310.70 is: 923,642.39
Step by Step Solution
- Step 1: Write the proportion equation
1,213,170.51 : 1,674,163.76 = 669,310.70 : x - Step 2: Convert to fraction form
1,213,170.51/1,674,163.76 = 669,310.70/x - Step 3: Cross multiply
1,213,170.51x = 1,674,163.76 × 669,310.70 - Step 4: Simplify right side
1,213,170.51x = 1,120,535,712,050.17 - Step 5: Solve for x
x = 1,120,535,712,050.17/1,213,170.51 - Step 6: Final answer
x = 923,642.39
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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.