Finding the Fourth Proportional to 413,528.10, 620,378.55 and 133,073.70
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Solution
The fourth proportional to 413,528.10, 620,378.55 and 133,073.70 is: 199,638.35
Step by Step Solution
- Step 1: Write the proportion equation
413,528.10 : 620,378.55 = 133,073.70 : x - Step 2: Convert to fraction form
413,528.10/620,378.55 = 133,073.70/x - Step 3: Cross multiply
413,528.10x = 620,378.55 × 133,073.70 - Step 4: Simplify right side
413,528.10x = 82,556,069,049.14 - Step 5: Solve for x
x = 82,556,069,049.14/413,528.10 - Step 6: Final answer
x = 199,638.35
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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.