Finding the Fourth Proportional to 496,427.13, 685,307.39 and 305,604.09
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Solution
The fourth proportional to 496,427.13, 685,307.39 and 305,604.09 is: 421,880.13
Step by Step Solution
- Step 1: Write the proportion equation
496,427.13 : 685,307.39 = 305,604.09 : x - Step 2: Convert to fraction form
496,427.13/685,307.39 = 305,604.09/x - Step 3: Cross multiply
496,427.13x = 685,307.39 × 305,604.09 - Step 4: Simplify right side
496,427.13x = 209,432,739,763.21 - Step 5: Solve for x
x = 209,432,739,763.21/496,427.13 - Step 6: Final answer
x = 421,880.13
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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.