Finding the Fourth Proportional to 633,878.76, 874,759.56 and 347,392.68
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Solution
The fourth proportional to 633,878.76, 874,759.56 and 347,392.68 is: 479,405.66
Step by Step Solution
- Step 1: Write the proportion equation
633,878.76 : 874,759.56 = 347,392.68 : x - Step 2: Convert to fraction form
633,878.76/874,759.56 = 347,392.68/x - Step 3: Cross multiply
633,878.76x = 874,759.56 × 347,392.68 - Step 4: Simplify right side
633,878.76x = 303,885,067,904.02 - Step 5: Solve for x
x = 303,885,067,904.02/633,878.76 - Step 6: Final answer
x = 479,405.66
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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.