Finding the Fourth Proportional to 2,982,136.20, 4,473,204.30 and 738,274.20
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Solution
The fourth proportional to 2,982,136.20, 4,473,204.30 and 738,274.20 is: 1,107,411.30
Step by Step Solution
- Step 1: Write the proportion equation
2,982,136.20 : 4,473,204.30 = 738,274.20 : x - Step 2: Convert to fraction form
2,982,136.20/4,473,204.30 = 738,274.20/x - Step 3: Cross multiply
2,982,136.20x = 4,473,204.30 × 738,274.20 - Step 4: Simplify right side
2,982,136.20x = 3,302,451,326,019.06 - Step 5: Solve for x
x = 3,302,451,326,019.06/2,982,136.20 - Step 6: Final answer
x = 1,107,411.30
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1.5x scale
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.