Finding the Third Proportional to 309,408 and 678,552
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Solution
The third proportional to 309,408 and 678,552 is: 1,488,108.96
Step by Step Solution
- Step 1: Write the proportion equation
309,408 : 678,552 = 678,552 : x - Step 2: Convert to fraction form
309,408/678,552 = 678,552/x - Step 3: Cross multiply
309,408x = 678,552 × 678,552 - Step 4: Simplify right side
309,408x = 460,432,816,704 - Step 5: Solve for x
x = 460,432,816,704/309,408 - Step 6: Final answer
x = 1,488,108.96
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.