Finding the Fourth Proportional to 405,986.80, 608,922.60 and 125,532.40
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Solution
The fourth proportional to 405,986.80, 608,922.60 and 125,532.40 is: 188,280.79
Step by Step Solution
- Step 1: Write the proportion equation
405,986.80 : 608,922.60 = 125,532.40 : x - Step 2: Convert to fraction form
405,986.80/608,922.60 = 125,532.40/x - Step 3: Cross multiply
405,986.80x = 608,922.60 × 125,532.40 - Step 4: Simplify right side
405,986.80x = 76,439,515,392.24 - Step 5: Solve for x
x = 76,439,515,392.24/405,986.80 - Step 6: Final answer
x = 188,280.79
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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.