Finding the Third Proportional to 869,021 and 1,272,421
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Solution
The third proportional to 869,021 and 1,272,421 is: 1,863,079.49
Step by Step Solution
- Step 1: Write the proportion equation
869,021 : 1,272,421 = 1,272,421 : x - Step 2: Convert to fraction form
869,021/1,272,421 = 1,272,421/x - Step 3: Cross multiply
869,021x = 1,272,421 × 1,272,421 - Step 4: Simplify right side
869,021x = 1,619,055,201,241 - Step 5: Solve for x
x = 1,619,055,201,241/869,021 - Step 6: Final answer
x = 1,863,079.49
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Why These Related Problems?
These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.