Finding the Fourth Proportional to 2,115,630.20, 3,173,121.30 and 695,689.40
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Solution
The fourth proportional to 2,115,630.20, 3,173,121.30 and 695,689.40 is: 1,043,427.56
Step by Step Solution
- Step 1: Write the proportion equation
2,115,630.20 : 3,173,121.30 = 695,689.40 : x - Step 2: Convert to fraction form
2,115,630.20/3,173,121.30 = 695,689.40/x - Step 3: Cross multiply
2,115,630.20x = 3,173,121.30 × 695,689.40 - Step 4: Simplify right side
2,115,630.20x = 2,207,506,853,324.22 - Step 5: Solve for x
x = 2,207,506,853,324.22/2,115,630.20 - Step 6: Final answer
x = 1,043,427.56
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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.