Finding the Fourth Proportional to 881,220.75, 1,216,092.06 and 478,812.75
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Solution
The fourth proportional to 881,220.75, 1,216,092.06 and 478,812.75 is: 660,765.63
Step by Step Solution
- Step 1: Write the proportion equation
881,220.75 : 1,216,092.06 = 478,812.75 : x - Step 2: Convert to fraction form
881,220.75/1,216,092.06 = 478,812.75/x - Step 3: Cross multiply
881,220.75x = 1,216,092.06 × 478,812.75 - Step 4: Simplify right side
881,220.75x = 582,280,383,501.77 - Step 5: Solve for x
x = 582,280,383,501.77/881,220.75 - Step 6: Final answer
x = 660,765.63
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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.