Finding the Fourth Proportional to 743,588.23, 1,026,149.24 and 421,359.75
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Solution
The fourth proportional to 743,588.23, 1,026,149.24 and 421,359.75 is: 581,475.03
Step by Step Solution
- Step 1: Write the proportion equation
743,588.23 : 1,026,149.24 = 421,359.75 : x - Step 2: Convert to fraction form
743,588.23/1,026,149.24 = 421,359.75/x - Step 3: Cross multiply
743,588.23x = 1,026,149.24 × 421,359.75 - Step 4: Simplify right side
743,588.23x = 432,377,987,229.09 - Step 5: Solve for x
x = 432,377,987,229.09/743,588.23 - Step 6: Final answer
x = 581,475.03
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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.