Finding the Fourth Proportional to 633,369.68, 874,112.69 and 361,478.19
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Solution
The fourth proportional to 633,369.68, 874,112.69 and 361,478.19 is: 498,875.60
Step by Step Solution
- Step 1: Write the proportion equation
633,369.68 : 874,112.69 = 361,478.19 : x - Step 2: Convert to fraction form
633,369.68/874,112.69 = 361,478.19/x - Step 3: Cross multiply
633,369.68x = 874,112.69 × 361,478.19 - Step 4: Simplify right side
633,369.68x = 315,972,675,674.36 - Step 5: Solve for x
x = 315,972,675,674.36/633,369.68 - Step 6: Final answer
x = 498,875.60
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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.