Finding the Fourth Proportional to 813,649.05, 1,123,258.19 and 631,954.17
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Solution
The fourth proportional to 813,649.05, 1,123,258.19 and 631,954.17 is: 872,424.90
Step by Step Solution
- Step 1: Write the proportion equation
813,649.05 : 1,123,258.19 = 631,954.17 : x - Step 2: Convert to fraction form
813,649.05/1,123,258.19 = 631,954.17/x - Step 3: Cross multiply
813,649.05x = 1,123,258.19 × 631,954.17 - Step 4: Simplify right side
813,649.05x = 709,847,693,997.38 - Step 5: Solve for x
x = 709,847,693,997.38/813,649.05 - Step 6: Final answer
x = 872,424.90
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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.