Finding the Fourth Proportional to 457,327.80, 685,991.70 and 124,903.80
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Solution
The fourth proportional to 457,327.80, 685,991.70 and 124,903.80 is: 187,355.70
Step by Step Solution
- Step 1: Write the proportion equation
457,327.80 : 685,991.70 = 124,903.80 : x - Step 2: Convert to fraction form
457,327.80/685,991.70 = 124,903.80/x - Step 3: Cross multiply
457,327.80x = 685,991.70 × 124,903.80 - Step 4: Simplify right side
457,327.80x = 85,682,970,098.46 - Step 5: Solve for x
x = 85,682,970,098.46/457,327.80 - Step 6: Final answer
x = 187,355.70
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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.