Finding the Fourth Proportional to 406,106.19, 609,509.21 and 281,534.67
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Solution
The fourth proportional to 406,106.19, 609,509.21 and 281,534.67 is: 422,544.59
Step by Step Solution
- Step 1: Write the proportion equation
406,106.19 : 609,509.21 = 281,534.67 : x - Step 2: Convert to fraction form
406,106.19/609,509.21 = 281,534.67/x - Step 3: Cross multiply
406,106.19x = 609,509.21 × 281,534.67 - Step 4: Simplify right side
406,106.19x = 171,597,972,891.64 - Step 5: Solve for x
x = 171,597,972,891.64/406,106.19 - Step 6: Final answer
x = 422,544.59
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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.