Finding the Fourth Proportional to 744,638.11, 1,027,605.05 and 405,108.79
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Solution
The fourth proportional to 744,638.11, 1,027,605.05 and 405,108.79 is: 559,052.56
Step by Step Solution
- Step 1: Write the proportion equation
744,638.11 : 1,027,605.05 = 405,108.79 : x - Step 2: Convert to fraction form
744,638.11/1,027,605.05 = 405,108.79/x - Step 3: Cross multiply
744,638.11x = 1,027,605.05 × 405,108.79 - Step 4: Simplify right side
744,638.11x = 416,291,836,847.15 - Step 5: Solve for x
x = 416,291,836,847.15/744,638.11 - Step 6: Final answer
x = 559,052.56
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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.