Finding the Fourth Proportional to 449,667.18, 620,542.32 and 245,718.09
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Solution
The fourth proportional to 449,667.18, 620,542.32 and 245,718.09 is: 339,091.84
Step by Step Solution
- Step 1: Write the proportion equation
449,667.18 : 620,542.32 = 245,718.09 : x - Step 2: Convert to fraction form
449,667.18/620,542.32 = 245,718.09/x - Step 3: Cross multiply
449,667.18x = 620,542.32 × 245,718.09 - Step 4: Simplify right side
449,667.18x = 152,478,472,713.13 - Step 5: Solve for x
x = 152,478,472,713.13/449,667.18 - Step 6: Final answer
x = 339,091.84
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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.