Finding the Third Proportional to 421,672 and 890,408
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Solution
The third proportional to 421,672 and 890,408 is: 1,880,196.95
Step by Step Solution
- Step 1: Write the proportion equation
421,672 : 890,408 = 890,408 : x - Step 2: Convert to fraction form
421,672/890,408 = 890,408/x - Step 3: Cross multiply
421,672x = 890,408 × 890,408 - Step 4: Simplify right side
421,672x = 792,826,406,464 - Step 5: Solve for x
x = 792,826,406,464/421,672 - Step 6: Final answer
x = 1,880,196.95
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Why These Related Problems?
These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.