Finding the Fourth Proportional to 556,628.63, 768,148.99 and 301,979.82
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Solution
The fourth proportional to 556,628.63, 768,148.99 and 301,979.82 is: 416,732.95
Step by Step Solution
- Step 1: Write the proportion equation
556,628.63 : 768,148.99 = 301,979.82 : x - Step 2: Convert to fraction form
556,628.63/768,148.99 = 301,979.82/x - Step 3: Cross multiply
556,628.63x = 768,148.99 × 301,979.82 - Step 4: Simplify right side
556,628.63x = 231,965,489,892.64 - Step 5: Solve for x
x = 231,965,489,892.64/556,628.63 - Step 6: Final answer
x = 416,732.95
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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.