Finding the Fourth Proportional to 486,837.19, 729,603.04 and 378,896.93
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Solution
The fourth proportional to 486,837.19, 729,603.04 and 378,896.93 is: 567,837.37
Step by Step Solution
- Step 1: Write the proportion equation
486,837.19 : 729,603.04 = 378,896.93 : x - Step 2: Convert to fraction form
486,837.19/729,603.04 = 378,896.93/x - Step 3: Cross multiply
486,837.19x = 729,603.04 × 378,896.93 - Step 4: Simplify right side
486,837.19x = 276,444,351,974.67 - Step 5: Solve for x
x = 276,444,351,974.67/486,837.19 - Step 6: Final answer
x = 567,837.37
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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.