Finding the Fourth Proportional to 743,831.67, 1,026,466.14 and 421,571.55
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Solution
The fourth proportional to 743,831.67, 1,026,466.14 and 421,571.55 is: 581,756.52
Step by Step Solution
- Step 1: Write the proportion equation
743,831.67 : 1,026,466.14 = 421,571.55 : x - Step 2: Convert to fraction form
743,831.67/1,026,466.14 = 421,571.55/x - Step 3: Cross multiply
743,831.67x = 1,026,466.14 × 421,571.55 - Step 4: Simplify right side
743,831.67x = 432,728,921,662.32 - Step 5: Solve for x
x = 432,728,921,662.32/743,831.67 - Step 6: Final answer
x = 581,756.52
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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.