Finding the Fourth Proportional to 449,593.07, 620,431.19 and 245,639.62
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Solution
The fourth proportional to 449,593.07, 620,431.19 and 245,639.62 is: 338,978.71
Step by Step Solution
- Step 1: Write the proportion equation
449,593.07 : 620,431.19 = 245,639.62 : x - Step 2: Convert to fraction form
449,593.07/620,431.19 = 245,639.62/x - Step 3: Cross multiply
449,593.07x = 620,431.19 × 245,639.62 - Step 4: Simplify right side
449,593.07x = 152,402,478,645.59 - Step 5: Solve for x
x = 152,402,478,645.59/449,593.07 - Step 6: Final answer
x = 338,978.71
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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.