Finding the Fourth Proportional to 1,821,420.24, 2,515,791.80 and 1,364,577.80
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Solution
The fourth proportional to 1,821,420.24, 2,515,791.80 and 1,364,577.80 is: 1,884,789.44
Step by Step Solution
- Step 1: Write the proportion equation
1,821,420.24 : 2,515,791.80 = 1,364,577.80 : x - Step 2: Convert to fraction form
1,821,420.24/2,515,791.80 = 1,364,577.80/x - Step 3: Cross multiply
1,821,420.24x = 2,515,791.80 × 1,364,577.80 - Step 4: Simplify right side
1,821,420.24x = 3,432,993,639,702.04 - Step 5: Solve for x
x = 3,432,993,639,702.04/1,821,420.24 - Step 6: Final answer
x = 1,884,789.44
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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.