Finding the Fourth Proportional to 1,354,891.13, 1,869,752.42 and 743,048.21
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Solution
The fourth proportional to 1,354,891.13, 1,869,752.42 and 743,048.21 is: 1,025,407.99
Step by Step Solution
- Step 1: Write the proportion equation
1,354,891.13 : 1,869,752.42 = 743,048.21 : x - Step 2: Convert to fraction form
1,354,891.13/1,869,752.42 = 743,048.21/x - Step 3: Cross multiply
1,354,891.13x = 1,869,752.42 × 743,048.21 - Step 4: Simplify right side
1,354,891.13x = 1,389,316,188,824.17 - Step 5: Solve for x
x = 1,389,316,188,824.17/1,354,891.13 - Step 6: Final answer
x = 1,025,407.99
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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.