Finding the Fourth Proportional to 463,889.28, 640,107.45 and 272,832.96
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Solution
The fourth proportional to 463,889.28, 640,107.45 and 272,832.96 is: 376,474.34
Step by Step Solution
- Step 1: Write the proportion equation
463,889.28 : 640,107.45 = 272,832.96 : x - Step 2: Convert to fraction form
463,889.28/640,107.45 = 272,832.96/x - Step 3: Cross multiply
463,889.28x = 640,107.45 × 272,832.96 - Step 4: Simplify right side
463,889.28x = 174,642,410,301.55 - Step 5: Solve for x
x = 174,642,410,301.55/463,889.28 - Step 6: Final answer
x = 376,474.34
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1.5x scale
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.