Finding the Fourth Proportional to 413,528.58, 620,378.95 and 129,207.64
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Solution
The fourth proportional to 413,528.58, 620,378.95 and 129,207.64 is: 193,838.36
Step by Step Solution
- Step 1: Write the proportion equation
413,528.58 : 620,378.95 = 129,207.64 : x - Step 2: Convert to fraction form
413,528.58/620,378.95 = 129,207.64/x - Step 3: Cross multiply
413,528.58x = 620,378.95 × 129,207.64 - Step 4: Simplify right side
413,528.58x = 80,157,700,035.18 - Step 5: Solve for x
x = 80,157,700,035.18/413,528.58 - Step 6: Final answer
x = 193,838.36
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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.