Finding the Fourth Proportional to 1,320,343.12, 1,822,116.90 and 747,370.99
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Solution
The fourth proportional to 1,320,343.12, 1,822,116.90 and 747,370.99 is: 1,031,396.53
Step by Step Solution
- Step 1: Write the proportion equation
1,320,343.12 : 1,822,116.90 = 747,370.99 : x - Step 2: Convert to fraction form
1,320,343.12/1,822,116.90 = 747,370.99/x - Step 3: Cross multiply
1,320,343.12x = 1,822,116.90 × 747,370.99 - Step 4: Simplify right side
1,320,343.12x = 1,361,797,311,448.73 - Step 5: Solve for x
x = 1,361,797,311,448.73/1,320,343.12 - Step 6: Final answer
x = 1,031,396.53
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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.