Finding the Fourth Proportional to 890,672.04, 1,229,178.18 and 528,310.44
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Solution
The fourth proportional to 890,672.04, 1,229,178.18 and 528,310.44 is: 729,098.52
Step by Step Solution
- Step 1: Write the proportion equation
890,672.04 : 1,229,178.18 = 528,310.44 : x - Step 2: Convert to fraction form
890,672.04/1,229,178.18 = 528,310.44/x - Step 3: Cross multiply
890,672.04x = 1,229,178.18 × 528,310.44 - Step 4: Simplify right side
890,672.04x = 649,387,665,114.20 - Step 5: Solve for x
x = 649,387,665,114.20/890,672.04 - Step 6: Final answer
x = 729,098.52
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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.