Finding the Fourth Proportional to 382,079.20, 573,118.80 and 346,649.80
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Solution
The fourth proportional to 382,079.20, 573,118.80 and 346,649.80 is: 519,974.70
Step by Step Solution
- Step 1: Write the proportion equation
382,079.20 : 573,118.80 = 346,649.80 : x - Step 2: Convert to fraction form
382,079.20/573,118.80 = 346,649.80/x - Step 3: Cross multiply
382,079.20x = 573,118.80 × 346,649.80 - Step 4: Simplify right side
382,079.20x = 198,671,517,396.24 - Step 5: Solve for x
x = 198,671,517,396.24/382,079.20 - Step 6: Final answer
x = 519,974.70
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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.