Finding the Fourth Proportional to 769,634.31, 1,062,088.42 and 425,478.99
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Solution
The fourth proportional to 769,634.31, 1,062,088.42 and 425,478.99 is: 587,157.17
Step by Step Solution
- Step 1: Write the proportion equation
769,634.31 : 1,062,088.42 = 425,478.99 : x - Step 2: Convert to fraction form
769,634.31/1,062,088.42 = 425,478.99/x - Step 3: Cross multiply
769,634.31x = 1,062,088.42 × 425,478.99 - Step 4: Simplify right side
769,634.31x = 451,896,305,673.51 - Step 5: Solve for x
x = 451,896,305,673.51/769,634.31 - Step 6: Final answer
x = 587,157.17
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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.