Finding the Third Proportional to 291,996 and 621,630
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Solution
The third proportional to 291,996 and 621,630 is: 1,323,387.50
Step by Step Solution
- Step 1: Write the proportion equation
291,996 : 621,630 = 621,630 : x - Step 2: Convert to fraction form
291,996/621,630 = 621,630/x - Step 3: Cross multiply
291,996x = 621,630 × 621,630 - Step 4: Simplify right side
291,996x = 386,423,856,900 - Step 5: Solve for x
x = 386,423,856,900/291,996 - Step 6: Final answer
x = 1,323,387.50
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Why These Related Problems?
These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.