Finding the Third Proportional to 646,405.31 and 1,311,278.63
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Solution
The third proportional to 646,405.31 and 1,311,278.63 is: 2,660,020.89
Step by Step Solution
- Step 1: Write the proportion equation
646,405.31 : 1,311,278.63 = 1,311,278.63 : x - Step 2: Convert to fraction form
646,405.31/1,311,278.63 = 1,311,278.63/x - Step 3: Cross multiply
646,405.31x = 1,311,278.63 × 1,311,278.63 - Step 4: Simplify right side
646,405.31x = 1,719,451,632,381.89 - Step 5: Solve for x
x = 1,719,451,632,381.89/646,405.31 - Step 6: Final answer
x = 2,660,020.89
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Why These Related Problems?
These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.