Finding the Third Proportional to 420,890.25 and 920,511.75
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Solution
The third proportional to 420,890.25 and 920,511.75 is: 2,013,213.38
Step by Step Solution
- Step 1: Write the proportion equation
420,890.25 : 920,511.75 = 920,511.75 : x - Step 2: Convert to fraction form
420,890.25/920,511.75 = 920,511.75/x - Step 3: Cross multiply
420,890.25x = 920,511.75 × 920,511.75 - Step 4: Simplify right side
420,890.25x = 847,341,881,888.06 - Step 5: Solve for x
x = 847,341,881,888.06/420,890.25 - Step 6: Final answer
x = 2,013,213.38
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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.