Finding the Fourth Proportional to 412,938.26, 618,989.06 and 279,831.98
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Solution
The fourth proportional to 412,938.26, 618,989.06 and 279,831.98 is: 419,464.48
Step by Step Solution
- Step 1: Write the proportion equation
412,938.26 : 618,989.06 = 279,831.98 : x - Step 2: Convert to fraction form
412,938.26/618,989.06 = 279,831.98/x - Step 3: Cross multiply
412,938.26x = 618,989.06 × 279,831.98 - Step 4: Simplify right side
412,938.26x = 173,212,934,258.14 - Step 5: Solve for x
x = 173,212,934,258.14/412,938.26 - Step 6: Final answer
x = 419,464.48
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.