Finding the Fourth Proportional to 531,831.76, 733,928.84 and 290,114.64
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Solution
The fourth proportional to 531,831.76, 733,928.84 and 290,114.64 is: 400,358.75
Step by Step Solution
- Step 1: Write the proportion equation
531,831.76 : 733,928.84 = 290,114.64 : x - Step 2: Convert to fraction form
531,831.76/733,928.84 = 290,114.64/x - Step 3: Cross multiply
531,831.76x = 733,928.84 × 290,114.64 - Step 4: Simplify right side
531,831.76x = 212,923,501,202.22 - Step 5: Solve for x
x = 212,923,501,202.22/531,831.76 - Step 6: Final answer
x = 400,358.75
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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.