Finding the Fourth Proportional to 478,749.21, 660,678.42 and 263,897.02
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Solution
The fourth proportional to 478,749.21, 660,678.42 and 263,897.02 is: 364,180.37
Step by Step Solution
- Step 1: Write the proportion equation
478,749.21 : 660,678.42 = 263,897.02 : x - Step 2: Convert to fraction form
478,749.21/660,678.42 = 263,897.02/x - Step 3: Cross multiply
478,749.21x = 660,678.42 × 263,897.02 - Step 4: Simplify right side
478,749.21x = 174,351,066,216.31 - Step 5: Solve for x
x = 174,351,066,216.31/478,749.21 - Step 6: Final answer
x = 364,180.37
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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.