Finding the Fourth Proportional to 963,861.70, 1,330,136.97 and 534,148.90
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Solution
The fourth proportional to 963,861.70, 1,330,136.97 and 534,148.90 is: 737,129.82
Step by Step Solution
- Step 1: Write the proportion equation
963,861.70 : 1,330,136.97 = 534,148.90 : x - Step 2: Convert to fraction form
963,861.70/1,330,136.97 = 534,148.90/x - Step 3: Cross multiply
963,861.70x = 1,330,136.97 × 534,148.90 - Step 4: Simplify right side
963,861.70x = 710,491,199,374.83 - Step 5: Solve for x
x = 710,491,199,374.83/963,861.70 - Step 6: Final answer
x = 737,129.82
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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.