Finding the Fourth Proportional to 434,660.20, 651,990.30 and 418,913.80
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Solution
The fourth proportional to 434,660.20, 651,990.30 and 418,913.80 is: 628,370.70
Step by Step Solution
- Step 1: Write the proportion equation
434,660.20 : 651,990.30 = 418,913.80 : x - Step 2: Convert to fraction form
434,660.20/651,990.30 = 418,913.80/x - Step 3: Cross multiply
434,660.20x = 651,990.30 × 418,913.80 - Step 4: Simplify right side
434,660.20x = 273,127,734,136.14 - Step 5: Solve for x
x = 273,127,734,136.14/434,660.20 - Step 6: Final answer
x = 628,370.70
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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.