Finding the Fourth Proportional to 745,350.92, 1,028,549.94 and 405,818.12
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Solution
The fourth proportional to 745,350.92, 1,028,549.94 and 405,818.12 is: 560,010.31
Step by Step Solution
- Step 1: Write the proportion equation
745,350.92 : 1,028,549.94 = 405,818.12 : x - Step 2: Convert to fraction form
745,350.92/1,028,549.94 = 405,818.12/x - Step 3: Cross multiply
745,350.92x = 1,028,549.94 × 405,818.12 - Step 4: Simplify right side
745,350.92x = 417,404,202,976.91 - Step 5: Solve for x
x = 417,404,202,976.91/745,350.92 - Step 6: Final answer
x = 560,010.31
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1.5x scale
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.