Finding the Fourth Proportional to 406,163.60, 561,276.84 and 305,386.64
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Solution
The fourth proportional to 406,163.60, 561,276.84 and 305,386.64 is: 422,013.32
Step by Step Solution
- Step 1: Write the proportion equation
406,163.60 : 561,276.84 = 305,386.64 : x - Step 2: Convert to fraction form
406,163.60/561,276.84 = 305,386.64/x - Step 3: Cross multiply
406,163.60x = 561,276.84 × 305,386.64 - Step 4: Simplify right side
406,163.60x = 171,406,448,277.42 - Step 5: Solve for x
x = 171,406,448,277.42/406,163.60 - Step 6: Final answer
x = 422,013.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.