Finding the Fourth Proportional to 801,123.40, 1,105,553.34 and 438,580.99
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Solution
The fourth proportional to 801,123.40, 1,105,553.34 and 438,580.99 is: 605,243.43
Step by Step Solution
- Step 1: Write the proportion equation
801,123.40 : 1,105,553.34 = 438,580.99 : x - Step 2: Convert to fraction form
801,123.40/1,105,553.34 = 438,580.99/x - Step 3: Cross multiply
801,123.40x = 1,105,553.34 × 438,580.99 - Step 4: Simplify right side
801,123.40x = 484,874,678,355.01 - Step 5: Solve for x
x = 484,874,678,355.01/801,123.40 - Step 6: Final answer
x = 605,243.43
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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.