Finding the Fourth Proportional to 1,721,214.20, 2,581,821.30 and 1,036,245.80
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Solution
The fourth proportional to 1,721,214.20, 2,581,821.30 and 1,036,245.80 is: 1,554,368.70
Step by Step Solution
- Step 1: Write the proportion equation
1,721,214.20 : 2,581,821.30 = 1,036,245.80 : x - Step 2: Convert to fraction form
1,721,214.20/2,581,821.30 = 1,036,245.80/x - Step 3: Cross multiply
1,721,214.20x = 2,581,821.30 × 1,036,245.80 - Step 4: Simplify right side
1,721,214.20x = 2,675,401,478,475.54 - Step 5: Solve for x
x = 2,675,401,478,475.54/1,721,214.20 - Step 6: Final answer
x = 1,554,368.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.