Finding the Fourth Proportional to 769,136.20, 1,153,358.70 and 295,664.20
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Solution
The fourth proportional to 769,136.20, 1,153,358.70 and 295,664.20 is: 443,363.45
Step by Step Solution
- Step 1: Write the proportion equation
769,136.20 : 1,153,358.70 = 295,664.20 : x - Step 2: Convert to fraction form
769,136.20/1,153,358.70 = 295,664.20/x - Step 3: Cross multiply
769,136.20x = 1,153,358.70 × 295,664.20 - Step 4: Simplify right side
769,136.20x = 341,006,877,348.54 - Step 5: Solve for x
x = 341,006,877,348.54/769,136.20 - Step 6: Final answer
x = 443,363.45
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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.