Finding the Fourth Proportional to 2,620,617.49, 3,930,948.11 and 823,461.18
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Solution
The fourth proportional to 2,620,617.49, 3,930,948.11 and 823,461.18 is: 1,235,198.64
Step by Step Solution
- Step 1: Write the proportion equation
2,620,617.49 : 3,930,948.11 = 823,461.18 : x - Step 2: Convert to fraction form
2,620,617.49/3,930,948.11 = 823,461.18/x - Step 3: Cross multiply
2,620,617.49x = 3,930,948.11 × 823,461.18 - Step 4: Simplify right side
2,620,617.49x = 3,236,983,169,179.37 - Step 5: Solve for x
x = 3,236,983,169,179.37/2,620,617.49 - Step 6: Final answer
x = 1,235,198.64
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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.