Finding the Fourth Proportional to 413,967.05, 620,950.63 and 129,679.76
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Solution
The fourth proportional to 413,967.05, 620,950.63 and 129,679.76 is: 194,519.65
Step by Step Solution
- Step 1: Write the proportion equation
413,967.05 : 620,950.63 = 129,679.76 : x - Step 2: Convert to fraction form
413,967.05/620,950.63 = 129,679.76/x - Step 3: Cross multiply
413,967.05x = 620,950.63 × 129,679.76 - Step 4: Simplify right side
413,967.05x = 80,524,725,241.30 - Step 5: Solve for x
x = 80,524,725,241.30/413,967.05 - Step 6: Final answer
x = 194,519.65
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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.