Finding the Third Proportional to 396,462.09 and 638,364.80
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Solution
The third proportional to 396,462.09 and 638,364.80 is: 1,027,865.26
Step by Step Solution
- Step 1: Write the proportion equation
396,462.09 : 638,364.80 = 638,364.80 : x - Step 2: Convert to fraction form
396,462.09/638,364.80 = 638,364.80/x - Step 3: Cross multiply
396,462.09x = 638,364.80 × 638,364.80 - Step 4: Simplify right side
396,462.09x = 407,509,613,889.26 - Step 5: Solve for x
x = 407,509,613,889.26/396,462.09 - Step 6: Final answer
x = 1,027,865.26
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These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.