Finding the Fourth Proportional to 863,440.02, 1,295,315.87 and 390,348.18
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Solution
The fourth proportional to 863,440.02, 1,295,315.87 and 390,348.18 is: 585,592.72
Step by Step Solution
- Step 1: Write the proportion equation
863,440.02 : 1,295,315.87 = 390,348.18 : x - Step 2: Convert to fraction form
863,440.02/1,295,315.87 = 390,348.18/x - Step 3: Cross multiply
863,440.02x = 1,295,315.87 × 390,348.18 - Step 4: Simplify right side
863,440.02x = 505,624,192,379.62 - Step 5: Solve for x
x = 505,624,192,379.62/863,440.02 - Step 6: Final answer
x = 585,592.72
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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.