Finding the Fourth Proportional to 489,079.80, 733,619.70 and 317,837.70
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Solution
The fourth proportional to 489,079.80, 733,619.70 and 317,837.70 is: 476,756.55
Step by Step Solution
- Step 1: Write the proportion equation
489,079.80 : 733,619.70 = 317,837.70 : x - Step 2: Convert to fraction form
489,079.80/733,619.70 = 317,837.70/x - Step 3: Cross multiply
489,079.80x = 733,619.70 × 317,837.70 - Step 4: Simplify right side
489,079.80x = 233,171,998,122.69 - Step 5: Solve for x
x = 233,171,998,122.69/489,079.80 - Step 6: Final answer
x = 476,756.55
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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.