Finding the Fourth Proportional to 638,831.41, 958,837.60 and 323,509.75
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Solution
The fourth proportional to 638,831.41, 958,837.60 and 323,509.75 is: 485,563.65
Step by Step Solution
- Step 1: Write the proportion equation
638,831.41 : 958,837.60 = 323,509.75 : x - Step 2: Convert to fraction form
638,831.41/958,837.60 = 323,509.75/x - Step 3: Cross multiply
638,831.41x = 958,837.60 × 323,509.75 - Step 4: Simplify right side
638,831.41x = 310,193,310,273.89 - Step 5: Solve for x
x = 310,193,310,273.89/638,831.41 - Step 6: Final answer
x = 485,563.65
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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.