Finding the Third Proportional to 728,210 and 1,130,655
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Solution
The third proportional to 728,210 and 1,130,655 is: 1,755,511.09
Step by Step Solution
- Step 1: Write the proportion equation
728,210 : 1,130,655 = 1,130,655 : x - Step 2: Convert to fraction form
728,210/1,130,655 = 1,130,655/x - Step 3: Cross multiply
728,210x = 1,130,655 × 1,130,655 - Step 4: Simplify right side
728,210x = 1,278,380,729,025 - Step 5: Solve for x
x = 1,278,380,729,025/728,210 - Step 6: Final answer
x = 1,755,511.09
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.