Finding the Fourth Proportional to 636,258.21, 877,984.14 and 374,571.97
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Solution
The fourth proportional to 636,258.21, 877,984.14 and 374,571.97 is: 516,878.59
Step by Step Solution
- Step 1: Write the proportion equation
636,258.21 : 877,984.14 = 374,571.97 : x - Step 2: Convert to fraction form
636,258.21/877,984.14 = 374,571.97/x - Step 3: Cross multiply
636,258.21x = 877,984.14 × 374,571.97 - Step 4: Simplify right side
636,258.21x = 328,868,247,467.12 - Step 5: Solve for x
x = 328,868,247,467.12/636,258.21 - Step 6: Final answer
x = 516,878.59
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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.