Finding the Fourth Proportional to 400,478.22, 600,126.84 and 378,039.60
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Solution
The fourth proportional to 400,478.22, 600,126.84 and 378,039.60 is: 566,501.99
Step by Step Solution
- Step 1: Write the proportion equation
400,478.22 : 600,126.84 = 378,039.60 : x - Step 2: Convert to fraction form
400,478.22/600,126.84 = 378,039.60/x - Step 3: Cross multiply
400,478.22x = 600,126.84 × 378,039.60 - Step 4: Simplify right side
400,478.22x = 226,871,710,542.86 - Step 5: Solve for x
x = 226,871,710,542.86/400,478.22 - Step 6: Final answer
x = 566,501.99
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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.