Finding the Fourth Proportional to 1,603,855.47, 2,213,322.26 and 868,811.45
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Solution
The fourth proportional to 1,603,855.47, 2,213,322.26 and 868,811.45 is: 1,198,960.73
Step by Step Solution
- Step 1: Write the proportion equation
1,603,855.47 : 2,213,322.26 = 868,811.45 : x - Step 2: Convert to fraction form
1,603,855.47/2,213,322.26 = 868,811.45/x - Step 3: Cross multiply
1,603,855.47x = 2,213,322.26 × 868,811.45 - Step 4: Simplify right side
1,603,855.47x = 1,922,959,722,027.88 - Step 5: Solve for x
x = 1,922,959,722,027.88/1,603,855.47 - Step 6: Final answer
x = 1,198,960.73
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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.