Finding the Fourth Proportional to 1,121,335.20, 1,682,270.64 and 373,387.68
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Solution
The fourth proportional to 1,121,335.20, 1,682,270.64 and 373,387.68 is: 560,170.71
Step by Step Solution
- Step 1: Write the proportion equation
1,121,335.20 : 1,682,270.64 = 373,387.68 : x - Step 2: Convert to fraction form
1,121,335.20/1,682,270.64 = 373,387.68/x - Step 3: Cross multiply
1,121,335.20x = 1,682,270.64 × 373,387.68 - Step 4: Simplify right side
1,121,335.20x = 628,139,131,401.72 - Step 5: Solve for x
x = 628,139,131,401.72/1,121,335.20 - Step 6: Final answer
x = 560,170.71
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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.