Finding the Fourth Proportional to 1,475,112.25, 2,035,717.67 and 821,737.47
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Solution
The fourth proportional to 1,475,112.25, 2,035,717.67 and 821,737.47 is: 1,134,032.68
Step by Step Solution
- Step 1: Write the proportion equation
1,475,112.25 : 2,035,717.67 = 821,737.47 : x - Step 2: Convert to fraction form
1,475,112.25/2,035,717.67 = 821,737.47/x - Step 3: Cross multiply
1,475,112.25x = 2,035,717.67 × 821,737.47 - Step 4: Simplify right side
1,475,112.25x = 1,672,825,497,468.38 - Step 5: Solve for x
x = 1,672,825,497,468.38/1,475,112.25 - Step 6: Final answer
x = 1,134,032.68
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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.