Finding the Fourth Proportional to 1,214,141.20, 1,702,286 and 1,214,141.20
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Solution
The fourth proportional to 1,214,141.20, 1,702,286 and 1,214,141.20 is: 1,702,286
Step by Step Solution
- Step 1: Write the proportion equation
1,214,141.20 : 1,702,286 = 1,214,141.20 : x - Step 2: Convert to fraction form
1,214,141.20/1,702,286 = 1,214,141.20/x - Step 3: Cross multiply
1,214,141.20x = 1,702,286 × 1,214,141.20 - Step 4: Simplify right side
1,214,141.20x = 2,066,815,566,783.20 - Step 5: Solve for x
x = 2,066,815,566,783.20/1,214,141.20 - Step 6: Final answer
x = 1,702,286
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.