Finding the Fourth Proportional to 915,523.38, 1,263,371.76 and 507,601.44
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Solution
The fourth proportional to 915,523.38, 1,263,371.76 and 507,601.44 is: 700,461.99
Step by Step Solution
- Step 1: Write the proportion equation
915,523.38 : 1,263,371.76 = 507,601.44 : x - Step 2: Convert to fraction form
915,523.38/1,263,371.76 = 507,601.44/x - Step 3: Cross multiply
915,523.38x = 1,263,371.76 × 507,601.44 - Step 4: Simplify right side
915,523.38x = 641,289,324,631.33 - Step 5: Solve for x
x = 641,289,324,631.33/915,523.38 - Step 6: Final answer
x = 700,461.99
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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.