Finding the Fourth Proportional to 651,324.40, 977,861.40 and 415,711.60
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Solution
The fourth proportional to 651,324.40, 977,861.40 and 415,711.60 is: 624,125.75
Step by Step Solution
- Step 1: Write the proportion equation
651,324.40 : 977,861.40 = 415,711.60 : x - Step 2: Convert to fraction form
651,324.40/977,861.40 = 415,711.60/x - Step 3: Cross multiply
651,324.40x = 977,861.40 × 415,711.60 - Step 4: Simplify right side
651,324.40x = 406,508,327,172.24 - Step 5: Solve for x
x = 406,508,327,172.24/651,324.40 - Step 6: Final answer
x = 624,125.75
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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.