Finding the Fourth Proportional to 1,245,418.75, 1,868,129.94 and 346,863.07
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Solution
The fourth proportional to 1,245,418.75, 1,868,129.94 and 346,863.07 is: 520,295.11
Step by Step Solution
- Step 1: Write the proportion equation
1,245,418.75 : 1,868,129.94 = 346,863.07 : x - Step 2: Convert to fraction form
1,245,418.75/1,868,129.94 = 346,863.07/x - Step 3: Cross multiply
1,245,418.75x = 1,868,129.94 × 346,863.07 - Step 4: Simplify right side
1,245,418.75x = 647,985,286,147.32 - Step 5: Solve for x
x = 647,985,286,147.32/1,245,418.75 - Step 6: Final answer
x = 520,295.11
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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.