Finding the Fourth Proportional to 769,129.20, 1,153,348.20 and 295,657.20
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Solution
The fourth proportional to 769,129.20, 1,153,348.20 and 295,657.20 is: 443,352.95
Step by Step Solution
- Step 1: Write the proportion equation
769,129.20 : 1,153,348.20 = 295,657.20 : x - Step 2: Convert to fraction form
769,129.20/1,153,348.20 = 295,657.20/x - Step 3: Cross multiply
769,129.20x = 1,153,348.20 × 295,657.20 - Step 4: Simplify right side
769,129.20x = 340,995,699,437.04 - Step 5: Solve for x
x = 340,995,699,437.04/769,129.20 - Step 6: Final answer
x = 443,352.95
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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.