Finding the Fourth Proportional to 879,580.80, 1,319,346.90 and 280,577.70
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Solution
The fourth proportional to 879,580.80, 1,319,346.90 and 280,577.70 is: 420,858.80
Step by Step Solution
- Step 1: Write the proportion equation
879,580.80 : 1,319,346.90 = 280,577.70 : x - Step 2: Convert to fraction form
879,580.80/1,319,346.90 = 280,577.70/x - Step 3: Cross multiply
879,580.80x = 1,319,346.90 × 280,577.70 - Step 4: Simplify right side
879,580.80x = 370,179,318,704.13 - Step 5: Solve for x
x = 370,179,318,704.13/879,580.80 - Step 6: Final answer
x = 420,858.80
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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.