Finding the Fourth Proportional to 743,838.01, 1,026,457.09 and 421,551.97
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Solution
The fourth proportional to 743,838.01, 1,026,457.09 and 421,551.97 is: 581,719.41
Step by Step Solution
- Step 1: Write the proportion equation
743,838.01 : 1,026,457.09 = 421,551.97 : x - Step 2: Convert to fraction form
743,838.01/1,026,457.09 = 421,551.97/x - Step 3: Cross multiply
743,838.01x = 1,026,457.09 × 421,551.97 - Step 4: Simplify right side
743,838.01x = 432,705,008,409.97 - Step 5: Solve for x
x = 432,705,008,409.97/743,838.01 - Step 6: Final answer
x = 581,719.41
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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.