Finding the Fourth Proportional to 668,858.42, 923,791.16 and 440,436.80
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Solution
The fourth proportional to 668,858.42, 923,791.16 and 440,436.80 is: 608,307.55
Step by Step Solution
- Step 1: Write the proportion equation
668,858.42 : 923,791.16 = 440,436.80 : x - Step 2: Convert to fraction form
668,858.42/923,791.16 = 440,436.80/x - Step 3: Cross multiply
668,858.42x = 923,791.16 × 440,436.80 - Step 4: Simplify right side
668,858.42x = 406,871,625,789.26 - Step 5: Solve for x
x = 406,871,625,789.26/668,858.42 - Step 6: Final answer
x = 608,307.55
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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.