Finding the Fourth Proportional to 461,783.96, 636,911.06 and 397,361.09
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Solution
The fourth proportional to 461,783.96, 636,911.06 and 397,361.09 is: 548,056.43
Step by Step Solution
- Step 1: Write the proportion equation
461,783.96 : 636,911.06 = 397,361.09 : x - Step 2: Convert to fraction form
461,783.96/636,911.06 = 397,361.09/x - Step 3: Cross multiply
461,783.96x = 636,911.06 × 397,361.09 - Step 4: Simplify right side
461,783.96x = 253,083,667,863.30 - Step 5: Solve for x
x = 253,083,667,863.30/461,783.96 - Step 6: Final answer
x = 548,056.43
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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.