Finding the Fourth Proportional to 1,944,109.20, 2,916,163.80 and 1,146,947.70
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Solution
The fourth proportional to 1,944,109.20, 2,916,163.80 and 1,146,947.70 is: 1,720,421.55
Step by Step Solution
- Step 1: Write the proportion equation
1,944,109.20 : 2,916,163.80 = 1,146,947.70 : x - Step 2: Convert to fraction form
1,944,109.20/2,916,163.80 = 1,146,947.70/x - Step 3: Cross multiply
1,944,109.20x = 2,916,163.80 × 1,146,947.70 - Step 4: Simplify right side
1,944,109.20x = 3,344,687,363,233.26 - Step 5: Solve for x
x = 3,344,687,363,233.26/1,944,109.20 - Step 6: Final answer
x = 1,720,421.55
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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.