Finding the Fourth Proportional to 486,243.52, 670,717.74 and 322,907.02
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Solution
The fourth proportional to 486,243.52, 670,717.74 and 322,907.02 is: 445,413.58
Step by Step Solution
- Step 1: Write the proportion equation
486,243.52 : 670,717.74 = 322,907.02 : x - Step 2: Convert to fraction form
486,243.52/670,717.74 = 322,907.02/x - Step 3: Cross multiply
486,243.52x = 670,717.74 × 322,907.02 - Step 4: Simplify right side
486,243.52x = 216,579,466,684.54 - Step 5: Solve for x
x = 216,579,466,684.54/486,243.52 - Step 6: Final answer
x = 445,413.58
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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.