Finding the Fourth Proportional to 782,302.46, 1,079,540.06 and 480,438.14
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Solution
The fourth proportional to 782,302.46, 1,079,540.06 and 480,438.14 is: 662,981.70
Step by Step Solution
- Step 1: Write the proportion equation
782,302.46 : 1,079,540.06 = 480,438.14 : x - Step 2: Convert to fraction form
782,302.46/1,079,540.06 = 480,438.14/x - Step 3: Cross multiply
782,302.46x = 1,079,540.06 × 480,438.14 - Step 4: Simplify right side
782,302.46x = 518,652,218,481.89 - Step 5: Solve for x
x = 518,652,218,481.89/782,302.46 - Step 6: Final answer
x = 662,981.70
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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.