Finding the Fourth Proportional to 406,028.20, 609,128.70 and 125,573.80
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Solution
The fourth proportional to 406,028.20, 609,128.70 and 125,573.80 is: 188,387.42
Step by Step Solution
- Step 1: Write the proportion equation
406,028.20 : 609,128.70 = 125,573.80 : x - Step 2: Convert to fraction form
406,028.20/609,128.70 = 125,573.80/x - Step 3: Cross multiply
406,028.20x = 609,128.70 × 125,573.80 - Step 4: Simplify right side
406,028.20x = 76,490,605,548.06 - Step 5: Solve for x
x = 76,490,605,548.06/406,028.20 - Step 6: Final answer
x = 188,387.42
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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.