Finding the Fourth Proportional to 1,379,830, 2,069,745.12 and 382,558
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Solution
The fourth proportional to 1,379,830, 2,069,745.12 and 382,558 is: 573,837.03
Step by Step Solution
- Step 1: Write the proportion equation
1,379,830 : 2,069,745.12 = 382,558 : x - Step 2: Convert to fraction form
1,379,830/2,069,745.12 = 382,558/x - Step 3: Cross multiply
1,379,830x = 2,069,745.12 × 382,558 - Step 4: Simplify right side
1,379,830x = 791,797,553,616.96 - Step 5: Solve for x
x = 791,797,553,616.96/1,379,830 - Step 6: Final answer
x = 573,837.03
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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.