Finding the Fourth Proportional to 816,156.20, 1,224,234.30 and 727,509.80
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Solution
The fourth proportional to 816,156.20, 1,224,234.30 and 727,509.80 is: 1,091,264.70
Step by Step Solution
- Step 1: Write the proportion equation
816,156.20 : 1,224,234.30 = 727,509.80 : x - Step 2: Convert to fraction form
816,156.20/1,224,234.30 = 727,509.80/x - Step 3: Cross multiply
816,156.20x = 1,224,234.30 × 727,509.80 - Step 4: Simplify right side
816,156.20x = 890,642,450,746.14 - Step 5: Solve for x
x = 890,642,450,746.14/816,156.20 - Step 6: Final answer
x = 1,091,264.70
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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.