Finding the Fourth Proportional to 667,840.80, 1,001,858.40 and 218,452.80
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Solution
The fourth proportional to 667,840.80, 1,001,858.40 and 218,452.80 is: 327,710.99
Step by Step Solution
- Step 1: Write the proportion equation
667,840.80 : 1,001,858.40 = 218,452.80 : x - Step 2: Convert to fraction form
667,840.80/1,001,858.40 = 218,452.80/x - Step 3: Cross multiply
667,840.80x = 1,001,858.40 × 218,452.80 - Step 4: Simplify right side
667,840.80x = 218,858,772,683.52 - Step 5: Solve for x
x = 218,858,772,683.52/667,840.80 - Step 6: Final answer
x = 327,710.99
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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.