Finding the Fourth Proportional to 750,821.76, 1,035,927.60 and 428,415.84
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Solution
The fourth proportional to 750,821.76, 1,035,927.60 and 428,415.84 is: 591,096.07
Step by Step Solution
- Step 1: Write the proportion equation
750,821.76 : 1,035,927.60 = 428,415.84 : x - Step 2: Convert to fraction form
750,821.76/1,035,927.60 = 428,415.84/x - Step 3: Cross multiply
750,821.76x = 1,035,927.60 × 428,415.84 - Step 4: Simplify right side
750,821.76x = 443,807,792,933.18 - Step 5: Solve for x
x = 443,807,792,933.18/750,821.76 - Step 6: Final answer
x = 591,096.07
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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.