Finding the Fourth Proportional to 3,018,278.70, 4,165,214.40 and 1,729,115.10
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Solution
The fourth proportional to 3,018,278.70, 4,165,214.40 and 1,729,115.10 is: 2,386,172.99
Step by Step Solution
- Step 1: Write the proportion equation
3,018,278.70 : 4,165,214.40 = 1,729,115.10 : x - Step 2: Convert to fraction form
3,018,278.70/4,165,214.40 = 1,729,115.10/x - Step 3: Cross multiply
3,018,278.70x = 4,165,214.40 × 1,729,115.10 - Step 4: Simplify right side
3,018,278.70x = 7,202,135,113,777.44 - Step 5: Solve for x
x = 7,202,135,113,777.44/3,018,278.70 - Step 6: Final answer
x = 2,386,172.99
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1.5x scale
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.