Finding the Fourth Proportional to 1,381,420.85, 1,906,363.76 and 800,755.97
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Solution
The fourth proportional to 1,381,420.85, 1,906,363.76 and 800,755.97 is: 1,105,044.96
Step by Step Solution
- Step 1: Write the proportion equation
1,381,420.85 : 1,906,363.76 = 800,755.97 : x - Step 2: Convert to fraction form
1,381,420.85/1,906,363.76 = 800,755.97/x - Step 3: Cross multiply
1,381,420.85x = 1,906,363.76 × 800,755.97 - Step 4: Simplify right side
1,381,420.85x = 1,526,532,148,276.05 - Step 5: Solve for x
x = 1,526,532,148,276.05/1,381,420.85 - Step 6: Final answer
x = 1,105,044.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.