Finding the Fourth Proportional to 633,660.16, 874,424.32 and 378,860.80
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Solution
The fourth proportional to 633,660.16, 874,424.32 and 378,860.80 is: 522,811.94
Step by Step Solution
- Step 1: Write the proportion equation
633,660.16 : 874,424.32 = 378,860.80 : x - Step 2: Convert to fraction form
633,660.16/874,424.32 = 378,860.80/x - Step 3: Cross multiply
633,660.16x = 874,424.32 × 378,860.80 - Step 4: Simplify right side
633,660.16x = 331,285,097,414.66 - Step 5: Solve for x
x = 331,285,097,414.66/633,660.16 - Step 6: Final answer
x = 522,811.94
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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.