Finding the Fourth Proportional to 998,486.40, 1,497,729.60 and 438,614.40
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Solution
The fourth proportional to 998,486.40, 1,497,729.60 and 438,614.40 is: 657,921.60
Step by Step Solution
- Step 1: Write the proportion equation
998,486.40 : 1,497,729.60 = 438,614.40 : x - Step 2: Convert to fraction form
998,486.40/1,497,729.60 = 438,614.40/x - Step 3: Cross multiply
998,486.40x = 1,497,729.60 × 438,614.40 - Step 4: Simplify right side
998,486.40x = 656,925,769,866.24 - Step 5: Solve for x
x = 656,925,769,866.24/998,486.40 - Step 6: Final answer
x = 657,921.60
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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.