Finding the Fourth Proportional to 625,456.49, 862,673.82 and 396,051.12
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Solution
The fourth proportional to 625,456.49, 862,673.82 and 396,051.12 is: 546,261.72
Step by Step Solution
- Step 1: Write the proportion equation
625,456.49 : 862,673.82 = 396,051.12 : x - Step 2: Convert to fraction form
625,456.49/862,673.82 = 396,051.12/x - Step 3: Cross multiply
625,456.49x = 862,673.82 × 396,051.12 - Step 4: Simplify right side
625,456.49x = 341,662,932,605.68 - Step 5: Solve for x
x = 341,662,932,605.68/625,456.49 - Step 6: Final answer
x = 546,261.72
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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.