Finding the Fourth Proportional to 811,803.70, 1,217,782.35 and 220,827.70
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Solution
The fourth proportional to 811,803.70, 1,217,782.35 and 220,827.70 is: 331,262.44
Step by Step Solution
- Step 1: Write the proportion equation
811,803.70 : 1,217,782.35 = 220,827.70 : x - Step 2: Convert to fraction form
811,803.70/1,217,782.35 = 220,827.70/x - Step 3: Cross multiply
811,803.70x = 1,217,782.35 × 220,827.70 - Step 4: Simplify right side
811,803.70x = 268,920,075,451.10 - Step 5: Solve for x
x = 268,920,075,451.10/811,803.70 - Step 6: Final answer
x = 331,262.44
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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.