Finding the Fourth Proportional to 667,716.40, 1,001,574.60 and 401,339.80
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Solution
The fourth proportional to 667,716.40, 1,001,574.60 and 401,339.80 is: 602,009.70
Step by Step Solution
- Step 1: Write the proportion equation
667,716.40 : 1,001,574.60 = 401,339.80 : x - Step 2: Convert to fraction form
667,716.40/1,001,574.60 = 401,339.80/x - Step 3: Cross multiply
667,716.40x = 1,001,574.60 × 401,339.80 - Step 4: Simplify right side
667,716.40x = 401,971,749,649.08 - Step 5: Solve for x
x = 401,971,749,649.08/667,716.40 - Step 6: Final answer
x = 602,009.70
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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.