Finding the Fourth Proportional to 404,799.80, 607,199.70 and 393,135.80
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Solution
The fourth proportional to 404,799.80, 607,199.70 and 393,135.80 is: 589,703.70
Step by Step Solution
- Step 1: Write the proportion equation
404,799.80 : 607,199.70 = 393,135.80 : x - Step 2: Convert to fraction form
404,799.80/607,199.70 = 393,135.80/x - Step 3: Cross multiply
404,799.80x = 607,199.70 × 393,135.80 - Step 4: Simplify right side
404,799.80x = 238,711,939,819.26 - Step 5: Solve for x
x = 238,711,939,819.26/404,799.80 - Step 6: Final answer
x = 589,703.70
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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.