Finding the Fourth Proportional to 734,509.92, 1,013,245.92 and 489,915.84
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Solution
The fourth proportional to 734,509.92, 1,013,245.92 and 489,915.84 is: 675,831.89
Step by Step Solution
- Step 1: Write the proportion equation
734,509.92 : 1,013,245.92 = 489,915.84 : x - Step 2: Convert to fraction form
734,509.92/1,013,245.92 = 489,915.84/x - Step 3: Cross multiply
734,509.92x = 1,013,245.92 × 489,915.84 - Step 4: Simplify right side
734,509.92x = 496,405,226,023.37 - Step 5: Solve for x
x = 496,405,226,023.37/734,509.92 - Step 6: Final answer
x = 675,831.89
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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.