Finding the Fourth Proportional to 881,201.70, 1,321,802.55 and 821,715.30
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Solution
The fourth proportional to 881,201.70, 1,321,802.55 and 821,715.30 is: 1,232,572.95
Step by Step Solution
- Step 1: Write the proportion equation
881,201.70 : 1,321,802.55 = 821,715.30 : x - Step 2: Convert to fraction form
881,201.70/1,321,802.55 = 821,715.30/x - Step 3: Cross multiply
881,201.70x = 1,321,802.55 × 821,715.30 - Step 4: Simplify right side
881,201.70x = 1,086,145,378,914.02 - Step 5: Solve for x
x = 1,086,145,378,914.02/881,201.70 - Step 6: Final answer
x = 1,232,572.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.