Finding the Fourth Proportional to 1,012,674.09, 1,397,486.75 and 559,965.09
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Solution
The fourth proportional to 1,012,674.09, 1,397,486.75 and 559,965.09 is: 772,749.89
Step by Step Solution
- Step 1: Write the proportion equation
1,012,674.09 : 1,397,486.75 = 559,965.09 : x - Step 2: Convert to fraction form
1,012,674.09/1,397,486.75 = 559,965.09/x - Step 3: Cross multiply
1,012,674.09x = 1,397,486.75 × 559,965.09 - Step 4: Simplify right side
1,012,674.09x = 782,543,790,937.73 - Step 5: Solve for x
x = 782,543,790,937.73/1,012,674.09 - Step 6: Final answer
x = 772,749.89
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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.